Results 101 to 110 of about 13,323,592 (307)

Exact equilibrium distributions in statistical quantum field theory with rotation and acceleration: Dirac field

open access: yesJournal of High Energy Physics, 2021
We derive the general exact forms of the Wigner function, of mean values of conserved currents, of the spin density matrix, of the spin polarization vector and of the distribution function of massless particles for the free Dirac field at global ...
A. Palermo, M. Buzzegoli, F. Becattini
doaj   +1 more source

Boundary state in an integrable quantum field theory out of equilibrium

open access: yesPhysics Letters B, 2014
We study a quantum quench of the mass and the interaction in the Sinh-Gordon model starting from a large initial mass and zero initial coupling. Our focus is on the determination of the expansion of the initial state in terms of post-quench excitations. We argue that the large energy profile of the involved excitations can be relevant for the late time
Sotiriadis, Spyridon   +2 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  

Vector‐Field Control and Emergent Basal‐Plane Anisotropy of Magnetic Textures in Noncentrosymmetric (Fe0.63Ni0.3Pd0.07)3P

open access: yesAdvanced Functional Materials, EarlyView.
A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev   +19 more
wiley   +1 more source

The O(N ) model with ϕ 6 potential in ℝ2 × ℝ+

open access: yesJournal of High Energy Physics, 2020
We study the large N limit of O(N ) scalar field theory with classically marginal ϕ 6 interaction in three dimensions in the presence of a planar boundary. This theory has an approximate conformal invariance at large N .
Christopher P. Herzog, Nozomu Kobayashi
doaj   +1 more source

Pressure‐Assisted Dimensional Transformation of 2D Hydrogenated Borophene into 0D Boron Quantum Dots

open access: yesAdvanced Functional Materials, EarlyView.
Hydrogenated borophene (HB) is transformed into distinct boron nanostructures through a solvent‐free thermal process. Under flowing nitrogen, hydrogen escape promotes reconstruction into B2O3 nanoplatelets, whereas hydrogen‐induced pressure under sealed conditions facilitates fragmentation into boron quantum dots.
Ozden Gunes Yildiz   +11 more
wiley   +1 more source

Boundary reflection matrices of massive ϕ 1,3-perturbed unitary minimal models

open access: yesJournal of High Energy Physics
We propose explicit expressions for the boundary reflection matrices of the $${\mathcal{A}}_{m}+(r, s)$$ series of massive scattering theories, obtained by perturbing the $${\mathcal{A}}_{m}$$ unitary minimal models with (r, s) boundary conditions with ...
Zoltan Bajnok   +2 more
doaj   +1 more source

Boundaries in relativistic quantum field theory

open access: yes, 2016
Boundary conditions in relativistic QFT can be classified by deep results in the theory of braided or modular tensor categories.
openaire   +2 more sources

Anisotropic Phonon Dynamics and Directional Transport in Actinide Van der Waals Semiconductor Uranium Triselenide

open access: yesAdvanced Functional Materials, EarlyView.
USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll   +17 more
wiley   +1 more source

Quantum charged black holes

open access: yesJournal of High Energy Physics
Within the framework of braneworld holography, we construct a quantum charged black hole localized on a three-dimensional anti-de Sitter (AdS) brane that intersects the asymptotic boundary of the four-dimensional AdS spacetime at the conformal defects ...
Yiji Feng   +4 more
doaj   +1 more source

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