Results 21 to 30 of about 64,609 (182)
Real-time correlation function of Floquet conformal fields [PDF]
, 2020 Conformal field theories (CFT) play an important role in quantum field theories as they allow for exact studies that are hard to access without the conformal symmetries in place.
M. Andersen +2 more
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On the Feynman-Hellmann theorem in quantum field theory and the calculation of matrix elements [PDF]
, 2016 Author(s): Bouchard, C; Chang, CC; Kurth, T; Orginos, K; Walker-Loud, A | Abstract: © 2017 American Physical Society. The Feynman-Hellmann theorem can be derived from the long Euclidean-time limit of correlation functions determined with functional ...
C. Bouchard +4 more
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Rate of cluster decomposition via Fermat-Steiner point
Journal of High Energy Physics, 2019 In quantum field theory with a mass gap correlation function between two spatially separated operators decays exponentially with the distance. This fundamental result immediately implies an exponential suppression of all higher point correlation ...
Alexander Avdoshkin +3 more
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On the S-matrix of Liouville theory
Journal of High Energy Physics, 2021 The S-matrix for each chiral sector of Liouville theory on a cylinder is computed from the loop expansion of correlation functions of a one-dimensional field theory on a circle with a non-local kinetic energy and an exponential potential.
George Jorjadze, Stefan Theisen
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Nonassociative Snyder ϕ 4 quantum field theory [PDF]
, 2017 In this article, we define and quantize a truncated form of the nonassociative and noncommutative Snyder ϕ^4 field theory using the functional method in momentum space. More precisely, the action is approximated by expanding up to the linear order in the
S. Meljanac +3 more
semanticscholar +1 more source
Journal of High Energy Physics, 2021 We identify a nontrivial yet tractable quantum field theory model with space/time anisotropic scale invariance, for which one can exactly compute certain four-point correlation functions and their decompositions via the operator-product expansion(OPE ...
Hidehiko Shimada, Hirohiko Shimada
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Lepton asymmetry rate from quantum field theory: NLO in the hierarchical limit [PDF]
, 2017 The rates for generating a matter-antimatter asymmetry in extensions of the Standard Model (SM) containing right-handed neutrinos are the most interesting and least trivial co\-efficients in the rate equations for baryogenesis through thermal ...
D. Bodeker, M. Sangel
semanticscholar +1 more source
Spectral form factor as an OTOC averaged over the Heisenberg group
Physics Letters B, 2019 We prove that in bosonic quantum mechanics the two-point spectral form factor can be obtained as an average of the two-point out-of-time ordered correlation function, with the average taken over the Heisenberg group.
Robert de Mello Koch +3 more
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European Physical Journal C: Particles and Fields, 2020 In this work, we study the impact of quantum entanglement on the two-point correlation function and the associated primordial power spectrum of mean square vacuum fluctuation in a bipartite quantum field theoretic system.
Sayantan Choudhury, Sudhakar Panda
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Conformal field theory on top of a breathing one-dimensional gas of hard core bosons [PDF]
SciPost Physics, 2019 The recent results of [J. Dubail, J.-M. Stéphan, J. Viti, P. Calabrese, Scipost Phys. 2, 002 (2017)], which aim at providing access to large scale correlation functions of inhomogeneous critical one-dimensional quantum systems —e.g.
P. Ruggiero, Y. Brun, J. Dubail
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