Quantum trajectory theory and simulations of nonlinear spectra and multiphoton effects in waveguide-QED systems with a time-delayed coherent feedback [PDF]
Physical Review A, 2021 We study the nonlinear spectra and multi-photon correlation functions for the waveguide output of a two-level system (including realistic dissipation channels) with a time-delayed coherent feedback.
G. Crowder, L. Ramunno, S. Hughes
semanticscholar +1 more source
Quantum kinetic theory for spin transport of quarks with background chromo-electromagnetic fields [PDF]
Journal of High Energy Physics, 2021 We derive the quantum kinetic equations for massive and massless quarks coupled with the background chromo-electromagnetic fields from the Wigner-function approach with the n expansion and effective power-counting scheme.
Di-Lun Yang
semanticscholar +1 more source
Quantum theory of superfluorescence based on two-point correlation functions [PDF]
Physical Review A, 2018 Irradiation of a medium by short intense pulses from x-ray / XUV free electron lasers can result in saturated photoionization of inner electronic shells. As a result an inversion of populations between core levels appears.
A. Benediktovitch +2 more
semanticscholar +1 more source
Correlation function of modular Hamiltonians [PDF]
Journal of High Energy Physics, 2019 We investigate varies correlation functions of modular Hamiltonians defined with respect to spatial regions in quantum field theory. These correlation functions are divergent in general.
J. Long
semanticscholar +1 more source
Kinetic theory with Berry curvature from quantum field theories [PDF]
, 2012 A kinetic theory can be modified to incorporate triangle anomalies and the chiral magnetic effect by taking into account the Berry curvature flux through the Fermi surface.
D. Son, N. Yamamoto
semanticscholar +1 more source
Quantum kinetic theory of metal clusters in an intense electromagnetic field
Condensed Matter Physics, 2004 A quantum kinetic theory for weakly inhomogeneous charged particle systems is derived within the framework of nonequilibrium Green's functions. The results are of relevance for valence electrons of metal clusters as well as for confined Coulomb systems ...
M.Bonitz, J.W.Dufty
doaj +1 more source
Positivity, low twist dominance and CSDR for CFTs
SciPost Physics, 2023 We consider a crossing symmetric dispersion relation (CSDR) for CFT four point correlation with identical scalar operators, which is manifestly symmetric under the cross-ratios $u,v$ interchange.
Agnese Bissi, Aninda Sinha
doaj +1 more source
Tree-level correlations in the strong field regime
Journal of High Energy Physics, 2017 We consider the correlation function of an arbitrary number of local observables in quantum field theory, in situations where the field amplitude is large.
François Gelis
doaj +1 more source
Einstein-Podolsky-Rosen correlations of Dirac particles: Quantum field theory approach [PDF]
, 2006 We calculate correlation function in the Einstein-Podolsky-Rosen type of experiment with massive relativistic Dirac particles in the framework of the quantum field theory formalism.
P. Caban, J. Rembieliński
semanticscholar +1 more source
Geometric actions and flat space holography
Journal of High Energy Physics, 2020 In this paper we perform the Hamiltonian reduction of the action for three- dimensional Einstein gravity with vanishing cosmological constant using the Chern-Simons formulation and Bondi-van der Burg-Metzner-Sachs (BMS) boundary conditions. An equivalent
Wout Merbis, Max Riegler
doaj +1 more source