Results 11 to 20 of about 1,094,653 (278)

Point-Particle Catalysis

open access: yesFrontiers in Physics, 2019
We use the point-particle effective field theory (PPEFT) framework to describe particle-conversion mediated by a flavor-changing coupling to a point-particle.
Peter Hayman   +3 more
doaj   +1 more source

Topological shadows and complexity of islands in multiboundary wormholes

open access: yesJournal of High Energy Physics, 2021
Recently, remarkable progress in recovering the Page curve of an evaporating black hole (BH) in Jackiw-Teitelboim gravity has been achieved through use of Quantum Extremal surfaces (QES). Multi-boundary Wormhole (MbW) models have been crucial in parallel
Aranya Bhattacharya   +4 more
doaj   +1 more source

A Killing vector treatment of multiboundary wormholes

open access: yesJournal of High Energy Physics, 2020
The two-sided BTZ black hole has been instrumental in elucidating several aspects of AdS/CFT. Similarly, multiboundary wormholes provide a useful and rich arena in which probing questions of quantum gravity can be posed and explored.
Elena Caceres   +3 more
doaj   +1 more source

Full higher-dimensional analysis of moduli oscillation and radiation in expanding universe

open access: yesJournal of High Energy Physics, 2023
We investigate effects of the radiation and the moduli oscillation around the stabilized values on the evolution of a 6-dimensional spacetime compactified on S 2.
Hajime Otsuka, Yutaka Sakamura
doaj   +1 more source

Eigenchannel theory of nuclear reactions [PDF]

open access: yes, 1966
A method is proposed by which the eigenstates and the eigenvalues of the S matrix, i.e., the eigenchannels, can be directly computed from the nuclear problem, for example, from the shell model.
Danos, Michael, Greiner, Walter
core   +1 more source

Scale invariance with fundamental matters and anomaly: a holographic description

open access: yesJournal of High Energy Physics, 2018
Generally, quantum field theories can be thought as deformations away from conformal field theories. In this article, with a simple bottom up model assumed to possess a holographic description, we study a putative large N quantum field theory with large ...
Avik Banerjee, Arnab Kundu, Augniva Ray
doaj   +1 more source

A new picture of quantum tunneling in the real-time path integral from Lefschetz thimble calculations

open access: yesJournal of High Energy Physics, 2023
It is well known that quantum tunneling can be described by instantons in the imaginary-time path integral formalism. However, its description in the real-time path integral formalism has been elusive. Here we establish a statement that quantum tunneling
Jun Nishimura   +2 more
doaj   +1 more source

Instanton-induced effects in interquark forces, light-front wave functions and formfactors [PDF]

open access: yesEPJ Web of Conferences, 2022
Exclusive processes are traditionally described by perturbative hard blocks and “distribution amplitudes" (DAs), matrix elements of operators of various chiral structure and twist. One paper (with I.Zahed) calculate instanton contribution to hard blocks,
Shuryak Edward
doaj   +1 more source

Fluctuations of conserved charges in hydrodynamics and molecular dynamics [PDF]

open access: yesEPJ Web of Conferences, 2023
We present an overview of recent theoretical results on fluctuations of conserved charges in heavy-ion collisions obtained in relativistic hydrodynamics and molecular dynamics frameworks.
Vovchenko Volodymyr
doaj   +1 more source

Rho meson decay in the presence of a magnetic field

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We find a general expression for the one-loop self-energy function of neutral $$\rho $$ ρ -meson due to $$\pi ^+\pi ^-$$ π + π - intermediate state in a background magnetic field.
Aritra Bandyopadhyay, S. Mallik
doaj   +1 more source

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