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Alexander Stottmeister08/07/2026, 17:20invited talk
Quantum systems with unboundedly many degrees of freedom may exhibit large-scale structures in their entanglement properties. The emergence of these structures is comparable to the emergence of sharp macroscopic properties in the thermodynamic limit. A particular example is the embezzlement of entanglement, first discovered by van Dam and Hayden in an approximate form.
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In the first part of... -
Max Joseph Fahn (University of Bologna and INFN Bologna)08/07/2026, 18:00invited talk
This talk discusses two scenarios in which quantum systems interact with gravity. The central question is to which extend different descriptions of the (quantum) gravitational sector leave distinct imprints on the effective dynamics of the quantum system, particularly on the resulting decoherence.
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The first part considers two quantum mechanical toy models describing a neutrino which... -
Eduardo Martin-Martinez (University of Waterloo)08/07/2026, 18:40invited talk
Entanglement generation is often regarded as evidence that the interaction responsible for it is quantum, and has become a central ingredient in many recent proposals to probe the quantum nature of gravity and other fundamental interactions. In this talk we revisit this intuition by asking a simple question: what features of an interaction are truly required to generate entanglement? We...
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Luca Marchetti (Okinawa Institute of Science and Technology)09/07/2026, 12:00contributed talk
Internal quantum reference frames provide a general framework for handling symmetries in quantum theory, with applications ranging from quantum gravity and gauge theories to quantum information and foundational physics. I will first introduce the formalism in simple mechanical systems, before turning to classical gravity. There, I will motivate the need for internal, dynamical frames in...
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09/07/2026, 12:40
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Yichen Hu (Florida Atlantic University)09/07/2026, 13:40invited talk
In the fractional quantum Hall effect, the topological quenching of kinetic energy elevates spatial geometry to the primary dynamical degree of freedom. We demonstrate that macroscopic charge dynamics can be rigorously formulated as a reduced classical phase space of two-dimensional unimodular vielbeins and the physical charge density is exactly identified with the scalar curvature of the...
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Daniele Oriti (Dept Fisica Teorica, Universidad Complutense de Madrid)09/07/2026, 14:50invited talk
The group field theory formalism provides a powerful embedding of canonical LQG states, spin foam amplitudes and lattice gravity path integrals, offering in particular suitable tools for the extraction of continuum, spatiotemporal physics. After reviewing the key aspects of this embedding, the challenges of bridging the gap between fundamental quantum gravity dynamics and effective continuum...
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Mehdi Assanioussi09/07/2026, 15:30invited talk
In a first part, I will present a coarse-grained model for canonical LQG, with an overview of the construction of the kinematical structure and the effective dynamics. Then, in a second part, I will present an analysis of a simplified classical model, which consists of two vertices, representing the elementary block structure which emerges in the the coarse-grained model. This analysis...
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Varun Kushwaha (Ludwig-Maximilians-Universität München)09/07/2026, 16:10contributed talk
Regularised field theories are usually described by assigning independent degrees of freedom to all modes below a UV cutoff. This gives a volume-scaling kinematical phase space. But for a given solution of the equations of motion, this count need not coincide with the number of independent canonical directions actually used by the dynamics.
I will present recent results on this question for...
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