Results 81 to 90 of about 885,594 (333)
Fermion resonance in quantum field theory [PDF]
, 2006 We derive accurately the fermion resonance propagator by means of Dyson summation of the self-energy contribution. It turns out that the relativistic fermion resonance differs essentially from its boson analog.Comment: 8 pages, 2 figures, revtex4 class ...
A. E. KALOSHIN +7 more
core +2 more sources
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Effective dynamics of quantum fluctuations in field theory: with applications to cosmology
Journal of High Energy PhysicsWe develop a novel framework for describing quantum fluctuations in field theory, with a focus on cosmological applications. Our method uniquely circumvents the use of operator/Hilbert-space formalism, instead relying on a systematic treatment of ...
Ding Ding, Yu Zhao, Yidun Wan
doaj +1 more source
Quantum Thermodynamics at Strong Coupling: Operator Thermodynamic Functions and Relations
Entropy, 2018 Identifying or constructing a fine-grained microscopic theory that will emerge under specific conditions to a known macroscopic theory is always a formidable challenge.
Jen-Tsung Hsiang, Bei-Lok Hu
doaj +1 more source
Renormalization and quantum field theory
, 2010 The aim of this paper is to describe how to use regularization and renormalization to construct a perturbative quantum field theory from a Lagrangian. We first define renormalizations and Feynman measures, and show that although there need not exist a ...
Abe +9 more
core +3 more sources
Advanced Functional Materials, EarlyView.A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian +6 more
wiley +1 more source
Journal of High Energy PhysicsThis paper introduces a novel systematic construction of gapped domain walls (GDWs) within the Levin-Wen (LW) model. By gluing two LW models along their open sides in a compatible way, we achieve a complete GDW classification by subsets of bulk input ...
Yanyan Chen +4 more
doaj +1 more source
Instabilities of Weyl loop semimetals
New Journal of Physics, 2016 We study Weyl-loop semi-metals with short range interactions, focusing on the possible interaction driven instabilities. We introduce an ϵ expansion regularization scheme by means of which the possible instabilities may be investigated in an unbiased ...
Shouvik Sur, Rahul Nandkishore
doaj +1 more source
Electron-nuclear decoupling at a spin clock transition
Communications Physics, 2023 Magnetic molecules have chemically tunable electronic states that could be used for quantum technologies, but they are often surrounded by a nuclear spin bath causing decoherence. In this study, the authors experimentally investigate the electron-nuclear
Krishnendu Kundu +10 more
doaj +1 more source
, 2004 It is commonly assumed that quantum field theory arises by applying ordinary quantum mechanics to the low energy effective degrees of freedom of a more fundamental theory defined at ultra-high-energy/short-wavelength scales.
Hollands, Stefan, Wald, Robert M.
core +2 more sources