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Advanced Topics in Quantum Field Theory
, 2022 Quantum field theory is the basis of our modern description of physical phenomena at the fundamental level. This systematic and comprehensive text emphasizes nonperturbative phenomena and supersymmetry. It includes a thorough discussion of various phases
M. Shifman
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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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Quantum Field Theory of Fluids [PDF]
Physical Review Letters, 2015 5 pages, 2 figures and 1 table. v2: Added references.
Gripaios, Ben, Sutherland, Dave
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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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Coulomb Problem for Classical Spinning Particles
Universe, 2023 We consider the motion of a weakly relativistic charged particle with an arbitrary spin in central potential e/r in terms of classical mechanics. We show that the spin–orbital interaction causes the precession of the plane of orbit around the vector of ...
Dmitry S. Kaparulin +1 more
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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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QUANTUM FIELD THEORY IN GRAPHENE [PDF]
International Journal of Modern Physics: Conference Series, 2012 This is a short non-technical introduction to applications of the Quantum Field Theory methods to graphene. We derive the Dirac model from the tight binding model and describe calculations of the polarization operator (conductivity). Later on, we use this quantity to describe the Quantum Hall Effect, light absorption by graphene, the Faraday effect ...
Ignat Fialkovsky, Dmitri Vassilevich
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Computation, 2016 An extremely interesting problem in aero-hydrodynamics is the sound radiation of a single vortical structure. Currently, this type of problem is mainly considered for an incompressible medium. In this paper a method was developed to take into account the
Tatiana Petrova, Fedor Shugaev
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Braided Quantum Field Theory [PDF]
, 1999 We develop a general framework for quantum field theory on noncommutative spaces, i.e., spaces with quantum group symmetry. We use the path integral approach to obtain expressions for $n$-point functions.
Oeckl, Robert
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