Triangle Seminars
Wednesday, 11 Nov 2026
Entanglement bootstrap for (edge) conformal field theories
📍 London
Xiang Li
(Oxford)
Abstract:
Entanglement bootstrap (EB) aims to uncover the universal data and structural properties of quantum many-body systems from local entanglement properties. In this talk, I will discuss our past progress on EB for 1+1D conformal field theories, including anomalous CFTs that can arise only as boundaries of 2+1D topological quantum field theories. Explicitly, I will discuss a locally checkable condition for 1+1D CFT ground states, as well as the reconstruction of Virasoro generators directly from the wavefunction. This allows us to diagnose if a given state is a CFT ground state or not, and if it is then how to extract CFT data from it.
Although these results are motivated by continuum field theory, they are also applicable to critical lattice systems. This opens the possibility of using entanglement bootstrap as a systematic framework for enumerating and potentially discovering new CFTs
Entanglement bootstrap (EB) aims to uncover the universal data and structural properties of quantum many-body systems from local entanglement properties. In this talk, I will discuss our past progress on EB for 1+1D conformal field theories, including anomalous CFTs that can arise only as boundaries of 2+1D topological quantum field theories. Explicitly, I will discuss a locally checkable condition for 1+1D CFT ground states, as well as the reconstruction of Virasoro generators directly from the wavefunction. This allows us to diagnose if a given state is a CFT ground state or not, and if it is then how to extract CFT data from it.
Although these results are motivated by continuum field theory, they are also applicable to critical lattice systems. This opens the possibility of using entanglement bootstrap as a systematic framework for enumerating and potentially discovering new CFTs
Posted by: Kiarash Naderi
TBA
📍 London
Zimo Sun
(Institute for Advanced Study (IAS))
Abstract:
TBA
TBA
Posted by: Elia de Sabbata
Chaos and thermalization in many-body Floquet systems
📍 London
Anton Kapustin
(Caltech)
Abstract:
Since the times of Ludwig Boltzmann, most physicists take it for granted that generic non-integrable closed dynamical systems, whether classical or quantum, thermalize at long times for generic initial conditions. Whether this belief is true or false depends on the type of systems one is willing to consider and the meaning of “generic” and “thermalizes”. In this talk I will discuss two types of many-body dynamical systems where thermalization (i.e. weak convergence to the state of maximal entropy) can be established for a large class of initial states. The first one is a system of an infinite number of spins with evolution generated by a repeated application of a Clifford Cellular Automaton. The second one is its classical counterpart and can be thought of as a mixing automorphism of an infinite-dimensional torus.
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Please register for the event!
https://lims.ac.uk/event/chaos-and-thermalisation-in-many-body-floquet-systems/
Colloquium at 5:00 PM, 11 Nov 2026 at LIMS, 2F of Royal Institution, 21 Albemarle St, W1S4BS, London
Everyone is warmly invited to stay for the reception afterwards, featuring drinks, cheese, refreshments, lively conversations, networking, and music in the evening!
Since the times of Ludwig Boltzmann, most physicists take it for granted that generic non-integrable closed dynamical systems, whether classical or quantum, thermalize at long times for generic initial conditions. Whether this belief is true or false depends on the type of systems one is willing to consider and the meaning of “generic” and “thermalizes”. In this talk I will discuss two types of many-body dynamical systems where thermalization (i.e. weak convergence to the state of maximal entropy) can be established for a large class of initial states. The first one is a system of an infinite number of spins with evolution generated by a repeated application of a Clifford Cellular Automaton. The second one is its classical counterpart and can be thought of as a mixing automorphism of an infinite-dimensional torus.
–-
Please register for the event!
https://lims.ac.uk/event/chaos-and-thermalisation-in-many-body-floquet-systems/
Colloquium at 5:00 PM, 11 Nov 2026 at LIMS, 2F of Royal Institution, 21 Albemarle St, W1S4BS, London
Everyone is warmly invited to stay for the reception afterwards, featuring drinks, cheese, refreshments, lively conversations, networking, and music in the evening!
Posted by: JUVEN WANG
Thursday, 12 Nov 2026
TBD
📍 London
Lucile Cangemi
(Edinburgh)
Abstract:
TBD.
TBD.
Posted by: Kymani Armstrong-Williams