BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//SFB TRR 352 - ECPv6.15.11//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:SFB TRR 352
X-ORIGINAL-URL:http://www.trr352.de
X-WR-CALDESC:Events for SFB TRR 352
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Berlin
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20230326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20231029T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240418T163000
DTEND;TZID=Europe/Berlin:20240418T163000
DTSTAMP:20260504T140009
CREATED:20250706T230628Z
LAST-MODIFIED:20250706T230628Z
UID:10000074-1713457800-1713457800@www.trr352.de
SUMMARY:Aspects of constructive quantum field theory
DESCRIPTION:In this talk\, I will try to motivate the subject of constructive quantum field theory which was born in the 70’s as an attempt to give rigorous constructions of quantum field theory models on Minkowski space and also describe scaling limits of spin systems. We will focus on some examples which give a taste of the theory and then discuss recent advances and open problems.
URL:http://www.trr352.de/event/aspects-of-constructive-quantum-field-theory/
LOCATION:Room A 027\, Theresienstr. 37\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240325T160000
DTEND;TZID=Europe/Berlin:20240325T160000
DTSTAMP:20260504T140009
CREATED:20250706T230839Z
LAST-MODIFIED:20250904T103414Z
UID:10000075-1711382400-1711382400@www.trr352.de
SUMMARY:On the microscopic foundations of the relativistic Vlasov-Maxwell equations
DESCRIPTION:The talk reviews the state of affairs in the mathematically rigorous foundations of the special-relativistic Vlasov-Maxwell equations. The progress is made possible by a recent formulation of a well-posed Lorentz co-variant initial value problem for the joint evolution of charged point particles and their electromagnetic Maxwell fields in a Bopp–Land ́e–Thomas–Podolsky (BLTP) vacuum.
URL:http://www.trr352.de/event/on-the-microscopic-foundations-of-the-relativistic-vlasov-maxwell-equations/
LOCATION:Room C3N14\, Auf der Morgenstelle 10\, Tübingen\, 72076\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240318T000000
DTEND;TZID=Europe/Berlin:20240322T235959
DTSTAMP:20260504T140009
CREATED:20250618T112855Z
LAST-MODIFIED:20250618T112855Z
UID:10000030-1710720000-1711151999@www.trr352.de
SUMMARY:TRR 352 Winter School on Mathematical Physics
DESCRIPTION:
URL:http://www.trr352.de/event/trr-352-winter-school-on-mathematical-physics-3/
LOCATION:Georg-von-Vollmar-Akademie\, Am Aspensteinbichl 9\, Kochel am See\, 82431\, Germany
CATEGORIES:Schools
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240226T190000
DTEND;TZID=Europe/Berlin:20240226T190000
DTSTAMP:20260504T140009
CREATED:20250706T231352Z
LAST-MODIFIED:20250904T103429Z
UID:10000076-1708974000-1708974000@www.trr352.de
SUMMARY:Correlation Decay for Finite Lattice Gauge Theories
DESCRIPTION:In the setting of lattice gauge theories with finite (possibly non-Abelian) gauge groups at weak coupling\, we prove exponential decay of correlations for a wide class of gauge invariant functions\, which in particular includes arbitrary functions of Wilson loop observables. Based on joint work with Sky Cao.
URL:http://www.trr352.de/event/correlation-decay-for-finite-lattice-gauge-theories/
LOCATION:Room 5608.02.011 (Seminarraum (M2/M3))\, Boltzmannstr. 3\, Garching b. München\, 85748\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240201T121500
DTEND;TZID=Europe/Berlin:20240201T121500
DTSTAMP:20260504T140009
CREATED:20250706T231523Z
LAST-MODIFIED:20250706T231523Z
UID:10000077-1706789700-1706789700@www.trr352.de
SUMMARY:A New Computational Approach for Bridging the Quantum-Classical Divide in Molecular Dynamics
DESCRIPTION:Although many-body quantum simulations have greatly benefited from high-perfor- mance computing facilities\, large molecular systems continue to pose formidable challenges. Mixed quantum-classical models\, such as Born-Oppenheimer molecular dynamics or Ehren- fest dynamics\, have been proposed to overcome the computational costs of fully quantum ap- proaches. However\, current mixed quantum-classical models typically suffer from long- standing consistency issues. In this talk\, we present a fully Hamiltonian theory of quantum- classical dynamics based on a geometric approach and Koopman wave functions. The resul- ting model appears to be the first to ensure a series of consistency properties\, beyond the posi- tivity of quantum and classical densities. We also exploit Lagrangian trajectories to formulate a finite-dimensional closure scheme for numerical implementations\, the “Koopmon method”. Numerical experiments demonstrate that the Koopmon method is able to capture effects beyond Ehrenfest dynamics in both the classical and the quantum sectors.
URL:http://www.trr352.de/event/a-new-computational-approach-for-bridging-the-quantum-classical-divide-in-molecular-dynamics/
LOCATION:Room 5608.02.011 (Seminarraum (M2/M3))\, Boltzmannstr. 3\, Garching b. München\, 85748\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240119T150000
DTEND;TZID=Europe/Berlin:20240119T150000
DTSTAMP:20260504T140009
CREATED:20250706T231911Z
LAST-MODIFIED:20250706T231911Z
UID:10000079-1705676400-1705676400@www.trr352.de
SUMMARY:The polaron problem
DESCRIPTION:The Fröhlich polaron models a charged quantum particle interactiong with a polar cystal. Since the moving particle has to drag along a ‘cloud’ of polarization\, it appears heavier than it would be without the interaction. An old conjecture of Landau and Pekar states that this so-called effective mass scales as the fourth power of the coupling constant\, with a precisely predicted pre-factor. While the conjecture is now 75 years old\, only very recently significant progress has been made on the mathematical side. Part of it uses probabilistic methods\, and I will report mostly on these aspects: starting with a Feynman-Kac representation\, the task is to study the mean square displacement of a Brownian motion perturbed by an attractive pair interaction. This model and its connection to the polaron is known for a long time\, will be the starting point of my talk\, and can be understood without reference to the quantum model.\nI will then report on two different recent methods which allow to actually estimate the mean square displacement. This is based on joint work with Steffen Polzer (Geneva)\, Tobias Schmidt (Darmstadt) and Mark Sellke (Harvard).
URL:http://www.trr352.de/event/the-polaron-problem/
LOCATION:Room B 349\, Theresienstr. 39\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240119T150000
DTEND;TZID=Europe/Berlin:20240119T150000
DTSTAMP:20260504T140009
CREATED:20250706T231706Z
LAST-MODIFIED:20250706T231706Z
UID:10000078-1705676400-1705676400@www.trr352.de
SUMMARY:The probabilistic behavior of lacunary sums
DESCRIPTION:It is known through classical works of Kac\, Salem\, Zygmund\, Erdös and Gal that lacunary sums behave in several ways like sums of independent random variables\, satisfying\, for instance\, a central limit theorem or a law of the iterated logarithm. We present some recent results on their large deviation behavior\, which show that on this scale\, contrary to the scale of the CLT or the LIL\, the LDP is sensitive to the arithmetic properties of the underlying Hadamard gap sequence. If time allows\, we shall briefly discuss some recent results regarding moderate deviations and the optimality of Diophantine conditions in the law of the iterated logarithm for lacunary systems.
URL:http://www.trr352.de/event/the-probabilistic-behavior-of-lacunary-sums/
LOCATION:Room B 349\, Theresienstr. 39\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20240109T141500
DTEND;TZID=Europe/Berlin:20240109T141500
DTSTAMP:20260504T140009
CREATED:20250706T232123Z
LAST-MODIFIED:20250829T134919Z
UID:10000080-1704809700-1704809700@www.trr352.de
SUMMARY:Renormalization of the Bogoliubov Theory in the Nelson Model
DESCRIPTION:In this talk – based on a joint work with J. Lampart\, N. Leopold\, and D. Mitrouskas – I will talk about the mean field limit of the renormalized Nelson model\, in which a large number of bosonic particles is weakly coupled with a large number of coherent excitations of the scalar field. We prove quantitative bounds on the convergence both for reduced density matrices and in norm\, with the effective theory being the Schrödinger-Klein-Gordon system with Yukawa-type coupling. A crucial ingredient of the proof is the construction of a renormalized Bogoliubov evolution for the quantum fluctuations
URL:http://www.trr352.de/event/renormalization-of-the-bogoliubov-theory-in-the-nelson-model/
LOCATION:Room B 349\, Theresienstr. 39\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231213T000000
DTEND;TZID=Europe/Berlin:20231215T235959
DTSTAMP:20260504T140009
CREATED:20250707T134956Z
LAST-MODIFIED:20260128T210025Z
UID:10000111-1702425600-1702684799@www.trr352.de
SUMMARY:Junior Meeting
DESCRIPTION:The meeting of the junior members of TRR 352 took place from December 13-15\, 2023\, at the Haus der bayerischen Landwirtschaft in Herrsching/Ammersee. \n \nProgram \nSchedule Junior Meeting 2023\nTitles & Abstracts\n \nTitles & Abstracts Junior Meeting 2023\n\nSpeakers: \nAlberto Brollo (TUM)\nFlorian Haberberger (LMU Munich)\nPaul Hege (Tübingen University)\nViet Hoang (Tübingen University)\nZahra Khanian (TUM)\nPeter Madsen (LMU Munich)\nLarry Read (LMU Munich)\nDiane Saint Aubin (Zurich University)\nDominik Sulz (Tübingen University)\nQuirin Vogel (TUM) \nOrganizers: \nAlberto Brollo (TUM)\nEmanuela Giacomelli (LMU Munich)\nEmilio Onorati (TUM)\nJonas Peteranderl (LMU Munich)\nCarla Rubiliani (Tübingen University)\nOliver Siebert (Tübingen University) \n\nVenue: \nHaus der bayerischen Landwirtschaft Herrsching\nRieder Str. 70\n82211 Herrsching am Ammersee\nphone: 08152-938-000\nInfo@HdbL-Herrsching.de \nHow to get there: \nFrom Munich Central station please take S8 to Herrsching (final stop). From there it is either a 30-minute walk or you can take the 921 bus (direction Weßling) to Herrsching-Lochschwab (3rd stop; S-Bahn ticket also valid for bus).
URL:http://www.trr352.de/event/junior-meeting/
LOCATION:Haus der bayerischen Landwirtschaft\, Rieder Str. 70\, Herrsching am Ammersee\, 82211\, Germany
CATEGORIES:Retreats
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231201T150000
DTEND;TZID=Europe/Berlin:20231201T150000
DTSTAMP:20260504T140009
CREATED:20250707T111333Z
LAST-MODIFIED:20250707T111333Z
UID:10000082-1701442800-1701442800@www.trr352.de
SUMMARY:Harmonic measure in a multidimensional gambler's problem
DESCRIPTION:We consider a random walk in a truncated cone K_N \, which is obtained by slicing cone K by a hyperplane at a growing level of order N. We study the behaviour of the Green function in this truncated cone as N increases. Using these results we also obtain the asymptotic behaviour of the harmonic measure. The obtained results are applied to a multidimensional gambler’s problem studied by Diaconis and Ethier (2022). In particular we confirm their conjecture that the probability of eliminating players in a particular order has the same exact asymptotic behaviour as for the Brownian motion approximation. We also provide a rate of convergence of this probability towards this approximation.
URL:http://www.trr352.de/event/harmonic-measure-in-a-multidimensional-gamblers-problem/
LOCATION:University of Augsburg\, Room 2004 (L1)\, Universitätsstraße 14\, Augsburg\, 86159
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231201T150000
DTEND;TZID=Europe/Berlin:20231201T150000
DTSTAMP:20260504T140009
CREATED:20250707T111158Z
LAST-MODIFIED:20250707T111158Z
UID:10000081-1701442800-1701442800@www.trr352.de
SUMMARY:Close-up on random convex interfaces
DESCRIPTION:In this talk\, we investigate random convex interfaces which are generated as convex hulls of random point sets. We are interested in their asymptotic behavior when the size of the input goes to infinity. In a first part\, we mainly identify average and maximal fluctuations in the radial and longitudinal directions through precise convergence results. We observe that the model shares some common features with the famous KPZ universality class of certain growth processes\, including the scaling of type 1:2:3 or the appearance of a limit distribution similar to the Tracy-Widom distribution. In a second part\, we consider the peeling procedure which consists in iterating the construction of the convex hull of the point set. The so-called layers are asymptotically governed by a deterministic analytical model and we study the geometric characteristics of each of the first layers. The talk is based on several joint works with Joe Yukich and Gauthier Quilan.
URL:http://www.trr352.de/event/close-up-on-random-convex-interfaces/
LOCATION:University of Augsburg\, Room 2004 (L1)\, Universitätsstraße 14\, Augsburg\, 86159
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231127T000000
DTEND;TZID=Europe/Berlin:20231208T235959
DTSTAMP:20260504T140009
CREATED:20250605T121747Z
LAST-MODIFIED:20260219T213349Z
UID:10000021-1701043200-1702079999@www.trr352.de
SUMMARY:Winter Workshop on Mathematical Aspects of Topological Order (TOPO23)
DESCRIPTION:
URL:http://www.trr352.de/event/winter-workshop-on-mathematical-aspects-of-topological-order-topo23/
LOCATION:University of Tübingen\, Geschwister-Scholl-Platz\, Tübingen\, 72074\, Germany
CATEGORIES:Workshops/Conferences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231116T163000
DTEND;TZID=Europe/Berlin:20231116T163000
DTSTAMP:20260504T140009
CREATED:20250707T111448Z
LAST-MODIFIED:20250707T111448Z
UID:10000083-1700152200-1700152200@www.trr352.de
SUMMARY:Decay of phonons in Bose gas
DESCRIPTION:Interacting Bose gas at zero temperature is often described by the Bogoliubov approximation. It involves quasiparticles\, called phonons\, with a rather curious dispersion relation responsible for superfluidity. The Fermi Golden Rule predicts that the lifetime of phonons is proportional to the 5th inverse power of momentum. This was first computed by Beliaev and goes under the name of the Beliaev damping. I will describe in a mathematically systematic way the chain of steps that leads to the formula for Beliaev damping. Some of these steps can be made rigorous\, some of them are only heuristic. Anyway\, in my opinion\, this is one of the most beautiful computations of theoretica l physics.
URL:http://www.trr352.de/event/decay-of-phonons-in-bose-gas/
LOCATION:Room A 027\, Theresienstr. 37\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231030T150000
DTEND;TZID=Europe/Berlin:20231030T150000
DTSTAMP:20260504T140009
CREATED:20250707T124932Z
LAST-MODIFIED:20250707T124932Z
UID:10000085-1698678000-1698678000@www.trr352.de
SUMMARY:The tube property for the swiss cheese problem
DESCRIPTION:In 2001 Bolthausen\, den Hollander and van den Berg obtained the asymptotics of the probability that the volume of a Wiener sausage at time t is smaller than expected by a fixed muliplicative constant. This asymptotics was given by a variational formula and they conjectured that the best strategy to achieve such a large deviation event is for the underlying Brownian motion to behave like a swiss cheese: stay most of the time inside a ball of subdiffusive size\, visit most of the points but leave some random holes. They moreover conjectured that to do so the Brownian motion behaves like a Brownian motion in a drift field given by a function of the maximizer of the variational problem. \nIn this talk I will talk about the corresponding problem for the random walk and will explain that conditioned to having a small range its properly defined empirical measure is indeed close to the maximizer of the above mentioned variational problem. \nThis is joint work with Julien Poisat.
URL:http://www.trr352.de/event/the-tube-property-for-the-swiss-cheese-problem/
LOCATION:Room B 349\, Theresienstr. 39\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231030T150000
DTEND;TZID=Europe/Berlin:20231030T150000
DTSTAMP:20260504T140009
CREATED:20250707T124824Z
LAST-MODIFIED:20250707T124824Z
UID:10000084-1698678000-1698678000@www.trr352.de
SUMMARY:Abelian Sandpile Markov chains
DESCRIPTION:The Abelian sandpile model on a graph G is a Markov chain whose state space is a subset of the set of functions with integer values defined on the vertices of G. The set of recurrent states of this Markov chain is called the sandpile group and the Abelian sandpile model can be then viewed as a random walk on a finite group. Then it is natural to ask about the stationary distribution and the speed of convergence to stationarity\, and how do these quantities depend on the underlying graph . I will report on some recents results on Abelian sandpiles on fractal graphs\, and state some open questions concerning the critical exponents for such processes. The talk is based on joint works with Nico Heizmann\, Robin Kaiser and Yuwen Wang.
URL:http://www.trr352.de/event/abelian-sandpile-markov-chains/
LOCATION:Room B 349\, Theresienstr. 39\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231011T000000
DTEND;TZID=Europe/Berlin:20231015T235959
DTSTAMP:20260504T140009
CREATED:20250707T134430Z
LAST-MODIFIED:20260213T122631Z
UID:10000110-1696982400-1697414399@www.trr352.de
SUMMARY:Kick-off Meeting
DESCRIPTION:First CRC meeting in the Bavarian Alps \nFrom October 11 to 15\, 2023\, the kick-off meeting of our CRC took place in Farchant near Garmisch. Around 60 participants came together to spend a few days in the beautiful surroundings of the Bavarian Alps. \n \nThe project leaders had the opportunity to present their projects and report on current progress and ideas.\nOn Friday afternoon\, the focus was on “Diversity and Unconscious Bias.” An invited speaker conducted a training session on this topic\, which was followed by a fruitful discussion. \nProgram  \n\nProgram Kick-off Meeting
URL:http://www.trr352.de/event/kick-off-meeting/
LOCATION:Explorer Hotel Garmisch\, Frickenstraße 22\, Farchant\, 82490\, Germany
CATEGORIES:Retreats
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20231009T000000
DTEND;TZID=Europe/Berlin:20231011T235959
DTSTAMP:20260504T140009
CREATED:20250616T081515Z
LAST-MODIFIED:20250616T081515Z
UID:10000022-1696809600-1697068799@www.trr352.de
SUMMARY:Workshop for young researchers in analysis and mathematical physics
DESCRIPTION:
URL:http://www.trr352.de/event/workshop-for-young-researchers-in-analysis-and-mathematical-physics/
LOCATION:LMU Munich\, Theresienstr. 39\, Munich\, 80333
CATEGORIES:Workshops/Conferences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230830T000000
DTEND;TZID=Europe/Berlin:20230901T235959
DTSTAMP:20260504T140009
CREATED:20250618T095719Z
LAST-MODIFIED:20250618T095719Z
UID:10000023-1693353600-1693612799@www.trr352.de
SUMMARY:Recent advances in Bose-Einstein condensation
DESCRIPTION:
URL:http://www.trr352.de/event/recent-advances-in-bose-einstein-condensation/
LOCATION:Garching Campus\, Boltzmannstraße 3\, Garching\, 85748\, Germany
CATEGORIES:Workshops/Conferences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230731T000000
DTEND;TZID=Europe/Berlin:20230804T235959
DTSTAMP:20260504T140009
CREATED:20250618T113101Z
LAST-MODIFIED:20250618T113101Z
UID:10000031-1690761600-1691193599@www.trr352.de
SUMMARY:Summer School "Current Topics in Mathematical Physics"
DESCRIPTION:
URL:http://www.trr352.de/event/summer-school-current-topics-in-mathematical-physics/
LOCATION:University of Warsaw\, ul. Pasteura 5\, Warsaw\, 02-093\, Poland
CATEGORIES:Schools
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230731T000000
DTEND;TZID=Europe/Berlin:20230804T235959
DTSTAMP:20260504T140009
CREATED:20250618T095836Z
LAST-MODIFIED:20250618T095836Z
UID:10000024-1690761600-1691193599@www.trr352.de
SUMMARY:Beyond IID in Information Theory 11
DESCRIPTION:
URL:http://www.trr352.de/event/beyond-iid-in-information-theory-11/
LOCATION:University of Tübingen\, Geschwister-Scholl-Platz\, Tübingen\, 72074\, Germany
CATEGORIES:Workshops/Conferences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230721T150000
DTEND;TZID=Europe/Berlin:20230721T150000
DTSTAMP:20260504T140009
CREATED:20250707T125213Z
LAST-MODIFIED:20250707T125213Z
UID:10000087-1689951600-1689951600@www.trr352.de
SUMMARY:Scaling limits for non-convex interaction
DESCRIPTION:The KPZ fixed point is conjectured to be the universal space-time scaling limit of the models belonging to the KPZ universality class and it was rigorously constructed by Matetski\, Quastel and Remenik (Acta Math.\, 2021) as a scaling limit of TASEP (Totally Asymmetric Simple Exclusion Process) with arbitrary initial configuration. We set up a new\, alternative approach to the KPZ fixed point\, based on combinatorial structures and non-intersecting path constructions\, which also allows studying inhomogeneous interacting particle systems. More specifically\, we consider a discrete-time TASEP\, where each particle jumps according to Bernoulli random variables with particle-dependent and time-inhomogeneous parameters\, starting from an arbitrary initial configuration. We provide an explicit\, step-by-step route from the very definition of the model to a Fredholm determinant representation of the joint distribution of the particle positions in terms of certain random walk hitting probabilities. Our tools include the combinatorics of the Robinson-Schensted-Knuth correspondence\, intertwining relations\, non-intersecting lattice paths\, and determinantal point processes.
URL:http://www.trr352.de/event/scaling-limits-for-non-convex-interaction/
LOCATION:University of Augsburg\, Room 2004 (L1)\, Universitätsstraße 14\, Augsburg\, 86159
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230721T150000
DTEND;TZID=Europe/Berlin:20230721T150000
DTSTAMP:20260504T140009
CREATED:20250707T125059Z
LAST-MODIFIED:20250707T125059Z
UID:10000086-1689951600-1689951600@www.trr352.de
SUMMARY:Non-intersecting path constructions for inhomogeneous TASEP and the KPZ fixed point
DESCRIPTION:We introduce a currently hot topic in probability theory\, the theory of scaling limits for random fields of gradients in all dimensions. The random fields are a class of model systems arising in the studies of random interfaces\, random geometry\, Euclidean field theory\, the theory of regularity structures\, and elasticity theory. After explaining how non-convex energy terms can influence the scaling limit\, we outline our result on the scaling limit to the continuum Gaussian Free Field in dimension d=2\,3 for a class of non-convex interaction energies. We show that the Hessian of the free energy governs the continuum Gaussian Free Field. The second result concern the Gaussian decay of correlations. All our results hold in the low-temperature regime and moderate boundary tilts. We outline how multi-scale/renormalisation group methods provide means of proving our statements. if time permits we discuss isomorphism theorems for the model.
URL:http://www.trr352.de/event/non-intersecting-path-constructions-for-inhomogeneous-tasep-and-the-kpz-fixed-point/
LOCATION:University of Augsburg\, Room 2004 (L1)\, Universitätsstraße 14\, Augsburg\, 86159
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230705T000000
DTEND;TZID=Europe/Berlin:20230707T235959
DTSTAMP:20260504T140009
CREATED:20250618T100237Z
LAST-MODIFIED:20250618T100237Z
UID:10000025-1688515200-1688774399@www.trr352.de
SUMMARY:Workshops of Young Researchers in Mathematical Physics
DESCRIPTION:
URL:http://www.trr352.de/event/workshops-of-young-researchers-in-mathematical-physics/
LOCATION:IHK Akademie Westerham\, Von-Andrian-Str. 5\, Feldkirchen-Westerham\, 83620\, Germany
CATEGORIES:Workshops/Conferences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230704T000000
DTEND;TZID=Europe/Berlin:20230706T235959
DTSTAMP:20260504T140009
CREATED:20250618T100451Z
LAST-MODIFIED:20250618T100451Z
UID:10000026-1688428800-1688687999@www.trr352.de
SUMMARY:Infinite dimensional quantum Markov semigroups
DESCRIPTION:
URL:http://www.trr352.de/event/infinite-dimensional-quantum-markov-semigroups/
LOCATION:University of Tübingen\, Geschwister-Scholl-Platz\, Tübingen\, 72074\, Germany
CATEGORIES:Workshops/Conferences
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230629T143000
DTEND;TZID=Europe/Berlin:20230629T143000
DTSTAMP:20260504T140009
CREATED:20250707T125402Z
LAST-MODIFIED:20250829T134950Z
UID:10000088-1688049000-1688049000@www.trr352.de
SUMMARY:A new approach to Scattering: On the Asymptotic states of Nonlinear Dispersive and Hyperbolic equations with General Data
DESCRIPTION:I will present a new approach to finding the asymptotic states of Nonlinear Wave Equations with general initial data.\nIn particular\, we show for a large class of equations\, that all asymptotic states are linear combinations of free wave\, localized parts (solitons\, breathers..) and a possibility of self-similar solutions as well in some cases. These results hold for initial data for which the H^1 Sobolev norm (the energy norm) is uniformly bounded in time.\nThis answers the question of Asymptotic Completeness to a large class of equations\, including for the first time\, equations with time dependent potentials.\nThese are joint works with Baoping Liu (Peking Univ) and Xiaoxu Wu (Rutgers).
URL:http://www.trr352.de/event/a-new-approach-to-scattering-on-the-asymptotic-states-of-nonlinear-dispersive-and-hyperbolic-equations-with-general-data/
LOCATION:Room C3N14\, Auf der Morgenstelle 10\, Tübingen\, 72076\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230628T161500
DTEND;TZID=Europe/Berlin:20230628T161500
DTSTAMP:20260504T140009
CREATED:20250707T125547Z
LAST-MODIFIED:20250904T103444Z
UID:10000089-1687968900-1687968900@www.trr352.de
SUMMARY:Ground state phase diagram of jellium: what do we think we know?
DESCRIPTION:The homogeneous electron gas (jellium) where electrons interact with each other and with a positive background charge is one of the simplest model system in condensed matter physics. Still\, the precise determination of the zero temperature phase diagram remains challenging. In the talk I will review some recent progress from a computational perspective concerning the ground state phase diagram and Fermi Liquid properties.
URL:http://www.trr352.de/event/ground-state-phase-diagram-of-jellium-what-do-we-think-we-know/
LOCATION:Room B 349\, Theresienstr. 39\, Munich\, 80333\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230622T160000
DTEND;TZID=Europe/Berlin:20230622T160000
DTSTAMP:20260504T140009
CREATED:20250707T125722Z
LAST-MODIFIED:20250829T135115Z
UID:10000090-1687449600-1687449600@www.trr352.de
SUMMARY:Large deviations in Bose-Einstein condensates
DESCRIPTION:We consider the ground state of a Bose gas of N particles on the three-dimensional unit torus in the mean-field regime that is known to exhibit Bose-Einstein condensation. Bounded one-particle operators with law given through the interacting Bose gas’ ground state correspond to dependent random variables. We prove that in the limit N to infinity\, bounded one-particle operators with law given by the ground state satisfy large deviation estimates. We derive a lower and an upper bound on the rate function that match up to second order and that are characterized by quantum fluctuations around the condensate.
URL:http://www.trr352.de/event/large-deviations-in-bose-einstein-condensates/
LOCATION:Room C3N14\, Auf der Morgenstelle 10\, Tübingen\, 72076\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230613T170000
DTEND;TZID=Europe/Berlin:20230613T170000
DTSTAMP:20260504T140009
CREATED:20250707T125926Z
LAST-MODIFIED:20250904T103455Z
UID:10000091-1686675600-1686675600@www.trr352.de
SUMMARY:Boltzmann-type collision operators for Bogoliubov excitations of Bose-Einstein condensates
DESCRIPTION:In this talk\, we describe the kinetic equation for the Bogoliubov excitations of the Bose-Einstein Condensate. We find three collisional processes: One of them describes the 1↔2 interactions between the condensate and the excited atoms. The other two describe the 2↔2 and 1↔3 interactions between the excited atoms themselves. This is a joint work with Yves Pomeau.
URL:http://www.trr352.de/event/boltzmann-type-collision-operators-for-bogoliubov-excitations-of-bose-einstein-condensates/
LOCATION:Room 5608.03.011 (Seminarraum (M1/M7))\, Boltzmannstr. 3\, Garching b. München\, 85748\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230613T160000
DTEND;TZID=Europe/Berlin:20230613T160000
DTSTAMP:20260504T140009
CREATED:20250707T130135Z
LAST-MODIFIED:20250707T130135Z
UID:10000092-1686672000-1686672000@www.trr352.de
SUMMARY:Estimation of propagation of chaos via cumulant hierarchies in two example models
DESCRIPTION:Propagation and generation of “chaos” is an important ingredient in rigorous control of applicability of kinetic theory\, in general. Chaos can here be understood as sufficient statistical independence of random variables related to the “kinetic” obser- vables of the system. Cumulant hierarchy of these random variables thus often gives a way of controlling the evolution and the degree of such independence\, i.e.\, theamount of “chaos” in the system. In this talk\, we will consider two\, qualitatively different\, ex-ample cases for which kinetic theory is believed to be applicable: the discrete nonlinear Schrodinger evolution (DNLS) with suitable random\, spatially ho- mogeneous initial data\, and the stochastic Kac model. In both cases\, we set up sui- table random variables and propose methods to control the evolution of their cumu- lant hierarchies. The talk is based on joint work with Aleksis Vuoksenmaa\, and earlier works with Matteo Marcozzi\, Alessia Nota\, and Herbert Spohn.
URL:http://www.trr352.de/event/estimation-of-propagation-of-chaos-via-cumulant-hierarchies-in-two-example-models/
LOCATION:Room 5608.03.011 (Seminarraum (M1/M7))\, Boltzmannstr. 3\, Garching b. München\, 85748\, Germany
CATEGORIES:Talks
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20230609T161500
DTEND;TZID=Europe/Berlin:20230609T161500
DTSTAMP:20260504T140009
CREATED:20250707T130400Z
LAST-MODIFIED:20250904T103511Z
UID:10000093-1686327300-1686327300@www.trr352.de
SUMMARY:Light cones for open quantum systems
DESCRIPTION:We consider Markovian open quantum dynamics (MOQD) in continuous space. We show that\, up to small-probability tails\, the supports of quantum states evolving under such dynamics propagate with finite speed in any finite-energy subspace. More precisely\, we prove that if the initial quantum state is localized in space\, then any finite-energy part of the solution of the von Neumann-Lindblad equation is approximately localized inside an energy- dependent light cone. We also obtain an explicit upper bound for the slope of this light cone. Joint work with S. Breteaux\, J. Faupin\, D.H. Ou Yang\, I.M. Sigal\, and J. Zhang.
URL:http://www.trr352.de/event/light-cones-for-open-quantum-systems/
LOCATION:Room 5607.01.023 (Seminarraum)\, Boltzmannstr. 3\, Garching b. München\, 85748\, Germany
CATEGORIES:Talks
END:VEVENT
END:VCALENDAR