Results 51 to 60 of about 13,864,114 (205)
Quantum vacuum fluctuations of the electromagnetic field in empty space seem not to produce observable effects over the motion of a charged test particle.
V. A. De Lorenci, C. C. H. Ribeiro
doaj +1 more source
Quantum field theory with an interaction on the boundary
15 ...
openaire +3 more sources
Integrable quantum field theories, in the bulk and with a boundary [PDF]
In this thesis, we consider the massive field theories in 1+1 dimensions known as affine Toda quantum field theories. These have the special property that they possess an infinite number of conserved quantities, a feature which greatly simplifies their ...
Mattsson, P.A., Mattsson, Peter Aake
core
Renyi relative entropies and renormalization group flows
Quantum Renyi relative entropies provide a one-parameter family of distances between density matrices, which generalizes the relative entropy and the fidelity. We study these measures for renormalization group flows in quantum field theory.
Horacio Casini +3 more
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Defect extremal surface as the holographic counterpart of Island formula
We propose defect extremal surface as the holographic counterpart of boundary quantum extremal surface. The defect extremal surface is defined by minimizing the Ryu-Takayanagi surface corrected by the defect theory.
Feiyu Deng, Jinwei Chu, Yang Zhou
doaj +1 more source
Affine toda field theories on a half-line [PDF]
This thesis is primarily concerned with the reflection factors of affine Toda field theories on the half-line x ≤ 0. First, we consider the classical background configurations of low rank a,(^(1)) affine Toda theories with a boundary, constructed by the ...
Perkins, Michael Gordon, Perkins, M.G.
core
Boundary sinh-Gordon model and its supersymmetric extension [PDF]
Three different aspects of the sinh-Gordon model are explored in this thesis. We begin, in chapter one, with a summary of the model and the necessary background. Chapter two studies the model with two boundary conditions.
Ablikim, M., Ablikim, Medina
core
Four-point boundary connectivities in critical two-dimensional percolation from conformal invariance
We conjecture an exact form for an universal ratio of four-point cluster connectivities in the critical two-dimensional Q-color Potts model. We also provide analogous results for the limit Q → 1 that corresponds to percolation where the observable has a ...
Giacomo Gori, Jacopo Viti
doaj +1 more source
Quantum Field Theory with Dynamical Boundary Conditions and the Casimir Effect
We study a coupled system that describes the interacting dynamics between a bulk field, confined to a finite region with timelike boundary, and a boundary observable. In our system the dynamics of the boundary observable prescribes dynamical boundary conditions for the bulk field.
Juárez-Aubry, Benito A., Weder, Ricardo
openaire +2 more sources
Evaluation of Correlation Functions in Integrable Quantum Field Theories [PDF]
The aim of this thesis is to explore correlation functions in two dimensional quantum field theories in two distinct ways. In part I a new method for calculating the differential equations parametrising the correlation functions of twist fields ...
SILK, JAMES,BRIAN, Silk, James Brian
core

