Results 21 to 30 of about 2,136,292 (317)
Entanglement entropy and quantum field theory [PDF]
, 2004 We carry out a systematic study of entanglement entropy in relativistic quantum field theory. This is defined as the von Neumann entropy SA = −Tr ρAlogρA corresponding to the reduced density matrix ρA of a subsystem A.
P. Calabrese, J. Cardy
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Quasirenormalizable Quantum Field Theories [PDF]
Theoretical and Mathematical Physics, 2019 21 pages, 2 ...
Polyakov, M. V. +3 more
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Tree Quantum Field Theory [PDF]
Annales Henri Poincaré, 2009 20 pages, 6 ...
Gurau, R., Magnen, J., Rivasseau, V.
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Circuit complexity in quantum field theory [PDF]
Journal of High Energy Physics, 2017 A bstractMotivated by recent studies of holographic complexity, we examine the question of circuit complexity in quantum field theory. We provide a quantum circuit model for the preparation of Gaussian states, in particular the ground state, in a free ...
R. Jefferson, R. Myers
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Extend the Levin-Wen model to two-dimensional topological orders with gapped boundary junctions
Journal of High Energy Physics, 2022 A realistic material may possess defects, which often bring the material new properties that have practical applications. The boundary defects of a two-dimensional topologically ordered system are thought of as an alternative way of realizing topological
Hongyu Wang, Yuting Hu, Yidun Wan
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Unfree gauge symmetry in the BV formalism
European Physical Journal C: Particles and Fields, 2019 The BV formalism is proposed for the theories where the gauge symmetry parameters are unfree, being constrained by differential equations.
D. S. Kaparulin, S. L. Lyakhovich
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Journal of Materiomics, 2023 AgBi3S5 is a new n-type thermoelectric material that is environmentally friendly and composed of elements of earth-abundant, non-toxic and high performance-cost ratio.
Xin Qian +7 more
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International Journal of Modern Physics A, 2005 The scope of this review is to give a pedagogical introduction to some new calculations and methods developed by the author in the context of quantum groups and their applications. The review is self-contained and serves as a "first aid kit" before one ventures into the beautiful but bewildering landscape of Woronowicz's theory.
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A note on unfree gauge symmetry
Nuclear Physics B, 2019 We study the general structure of field theories with the unfree gauge symmetry where the gauge parameters are restricted by differential equations.
D.S. Kaparulin, S.L. Lyakhovich
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Locally covariant quantum field theory with external sources [PDF]
, 2014 We provide a detailed analysis of the classical and quantized theory of a multiplet of inhomogeneous Klein-Gordon fields, which couple to the spacetime metric and also to an external source term; thus the solutions form an affine space.
Fewster, Christopher J. +1 more
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