Results 71 to 80 of about 13,864,114 (205)

Thermal Casimir effect with general boundary conditions

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In this paper we study the system of a scalar quantum field confined between two plane, isotropic, and homogeneous parallel plates at thermal equilibrium.
J. M. Muñoz-Castañeda   +3 more
doaj   +1 more source

String field theoryะ Time evolution and T-duality [PDF]

open access: yes, 2005
The time evolution operator of quantum field theory (Schrödinger functional) can be written in terms of particles moving on S(^1)/Z(_2-). By deriving the 'gluing property’ which joins two propagators across fixed time surfaces, we show that the Feynman ...
Liderton, Anton
core  

Reflecting boundary induced modulation of tripartite coherence harvesting

open access: yesJournal of High Energy Physics
We study the extraction of quantum coherence by three static Unruh-DeWitt (UDW) detectors that interact locally with a massless scalar vacuum field in the vicinity of an infinite perfectly reflecting boundary.
Shu-Min Wu   +4 more
doaj   +1 more source

Pure and twisted holography

open access: yesJournal of High Energy Physics, 2020
We analyze a simple example of a holographically dual pair in which we topologically twist both theories. The holography is based on the two-dimensional N = 2 supersymmetric Liouville conformal field theory that defines a unitary bulk quantum ...
Songyuan Li, Jan Troost
doaj   +1 more source

Inhomogeneous Quantum Quenches of Conformal Field Theory with Boundaries

open access: yesPhysical Review Letters
7+11 pages, 3+3 ...
Liu, Xinyu   +4 more
openaire   +3 more sources

Integrable Boundary Flows and the g-function [PDF]

open access: yes, 2012
This thesis explores renormalisation group flows in integrable quantum field theories with boundaries, as described by the g-function. The main focus is on the g-function in the staircase model, the renormalisation group flow of which passes close to the
WILBOURNE, RUTH,MARGARET   +1 more
core  

Thermodynamic geometry of holographic superconductors

open access: yesPhysics Letters B, 2016
We obtain the thermodynamic geometry of a (2+1) dimensional strongly coupled quantum field theory at a finite temperature in a holographic setup, through the gauge/gravity correspondence.
Sayan Basak   +3 more
doaj   +1 more source

Spectrum of end of the world branes in holographic BCFTs

open access: yesJournal of High Energy Physics, 2021
We study overlaps between two regularized boundary states in conformal field theories. Regularized boundary states are dual to end of the world branes in an AdS black hole via the AdS/BCFT. Thus they can be regarded as microstates of a single sided black
Masamichi Miyaji   +2 more
doaj   +1 more source

The complex sine-Gordon model on a half line [PDF]

open access: yes, 2003
In this thesis, we study the complex sine-Gordon model on a half line. The model in the bulk is an integrable (l+1) dimensional field theory which is U(1) gauge invariant and comprises a generalisation of the sine-Gordon theory.
Tzamtzis, Georgios
core  

Quantum Spacetime and Algebraic Quantum Field Theory

open access: yes, 2015
We review the investigations on the quantum structure of spacetime, to be found at the Planck scale if one takes into account the operational limitations to the localization of events which result from the concurrence of Quantum Mechanics and General ...
Doplicher, S   +11 more
core   +2 more sources

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