Format results
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Zeta-regularized vacuum expectation values
Tobias Hartung - Deutsches Elektronen-Synchrotron DESY
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Counter-diabatic driving in many-body systems
Dries Sels - New York University (NYU)
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Interdisciplinary Seminar: Holographic dualities and tensor renormalization group study of gauge theories
Raghav Govind Jha - Thomas Jefferson National Accelerator Facility
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TBA
Masamichi Miyaji - Yukawa Institute for Theoretical Physics
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Towards building a Lorentzian space-time tensor network
Ling-Yan Hung - Tsinghua University
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TBA
Antoine Tilloy - Max Planck Institute for Gravitational Physics - Albert Einstein Institute (AEI)
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Emergent Hyperbolic Network Geometry and Dynamics
Ginestra Bianconi - Queen Mary University of London
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Fermion condensation and superconducting string-nets
David Aasen - California Institute of Technology
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Tensor network trial wave functions for topological phases
Nick Bultinck - University of California, Berkeley
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Zeta-regularized vacuum expectation values
Tobias Hartung - Deutsches Elektronen-Synchrotron DESY
Computing vacuum expectation values is paramount in studying Quantum Field Theories (QFTs) since they provide relevant information for comparing the underlying theory with experimental results. However, unless the ground state of the system is explicitly known, such computations are very difficult… -
Tensor renormalization group in bosonic field theory
We compute the partition function of a massive free boson in a square lattice using a tensor network algorithm. We introduce a singular value decomposition (SVD) of continuous matrices that leads to very accurate numerical results. It is shown the emergence of a CDL fixed point structure. In the… -
Counter-diabatic driving in many-body systems
Dries Sels - New York University (NYU)
Adiabatic evolution is a common strategy for manipulating quantum states. However, it is inherently slow and therefore susceptible to decoherence. Shortcuts to adiabaticity are methods of achieving faster adiabatic evolution, in order to maintain high fidelity in the presence of decoherence and… -
Interdisciplinary Seminar: Holographic dualities and tensor renormalization group study of gauge theories
Raghav Govind Jha - Thomas Jefferson National Accelerator Facility
In the first part of the talk, I will mention the ongoing numerical efforts using lattice calculations to understand the holographic dualities relating the super Yang-Mills (SYM) theories in various dimensions and their conjectured Type II supergravity theories in the decoupling limit. In the second… -
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Towards building a Lorentzian space-time tensor network
Ling-Yan Hung - Tsinghua University
We discuss some algebraic quantum field theory (AQFT) ingredients that should be useful in defining a tensor network describing a Lorentzian space-time. We look into toy models that approximate Minkowski space and show how Lorentz boosts are approximately recovered, and obtain Rindler modes that can… -
TBA
Antoine Tilloy - Max Planck Institute for Gravitational Physics - Albert Einstein Institute (AEI)
Abstract TBD. -
Emergent Hyperbolic Network Geometry and Dynamics
Ginestra Bianconi - Queen Mary University of London
Simplicial complexes naturally describe discrete topological spaces. When their links are assigned a length they describe discrete geometries. As such simplicial complexes have been widely used in quantum gravity approaches that involve a discretization of spacetime. Recently they are becoming… -
Expressiveness in Deep Learning via Tensor Networks and Quantum Entanglement - Nadev Cohen
Three fundamental factors determine the quality of a statistical learning algorithm: expressiveness, generalization and optimization. The classic strategy for handling these factors is relatively well understood. In contrast, the radically different approach of deep learning, which in the last few… -
Tensor Network and Space-time Geometry - Charles (ChunJun) Cao
In this talk, I will discuss how to assign geometries, such as metric tensors, to certain tensor networks using quantum entanglement and tensor Radon transform. In addition, we show that behaviour similar to linearized gravity can naturally emerge in said tensor networks, provided a modified version… -
Fermion condensation and superconducting string-nets
David Aasen - California Institute of Technology
A great deal of progress has been made toward a classification of bosonic topological orders whose microscopic constituents are bosons. Much less is known about the classification of their fermionic counterparts. In this talk I will describe a systematic way of producing fermionic topological orders… -
Tensor network trial wave functions for topological phases
Nick Bultinck - University of California, Berkeley
The construction of trial wave functions has proven itself to be very useful for understanding strongly interacting quantum many-body systems. Two famous examples of such trial wave functions are the resonating valence bond state proposed by Anderson and the Laughlin wave function, which have…