Results 51 to 60 of about 78,966 (218)

Mermin's inequalities in Quantum Field Theory

Physics Letters B, 2023
A relativistic Quantum Field Theory framework is devised for Mermin's inequalities. By employing smeared Dirac spinor fields, we are able to introduce unitary operators which create, out of the Minkowski vacuum |0〉, GHZ-type states.
Philipe De Fabritiis, Itzhak Roditi, Silvio Paolo Sorella   +2 more
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Effective dynamics of quantum fluctuations in field theory: with applications to cosmology

Journal of High Energy Physics
We 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
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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
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Localization in quantum field theory [PDF]

International Journal of Geometric Methods in Modern Physics, 2017
In non-relativistic quantum mechanics, Born’s principle of localization is as follows: For a single particle, if a wave function [Formula: see text] vanishes outside a spatial region [Formula: see text], it is said to be localized in [Formula: see text].
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FROM EUCLIDEAN FIELD THEORY TO QUANTUM FIELD THEORY [PDF]

Reviews in Mathematical Physics, 1999
In order to construct examples for interacting quantum field theory models, the methods of Euclidean field theory turned out to be powerful tools since they make use of the techniques of classical statistical mechanics. Starting from an appropriate set of Euclidean n-point functions (Schwinger distributions), a Wightman theory can be reconstructed by
Dirk Schlingemann, Dirk Schlingemann
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Classification of gapped domain walls of topological orders in 2+1 dimensions: a Levin-Wen model realization

Journal of High Energy Physics
This 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, Siyuan Wang, Yu Zhao, Yuting Hu, Yidun Wan   +4 more
doaj   +1 more source

Remarkable average thermoelectric performance of the highly oriented Bi(Te, Se)-based thin films and devices

Journal of Materiomics
Bi(Te, Se)-based compounds have attracted lots of attention for nearly two centuries as one of the most successful commercial thermoelectric (TE) materials due to their high performance at near room temperature.
Zhiliang Li, Xiaoqi Yang, Zhi Gao, Jingxuan Wang, Yuli Xue, Jianglong Wang, Qian Cao, Zhihai Ding, Shufang Wang   +8 more
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Holographic entanglement of purification for thermofield double states and thermal quench

Journal of High Energy Physics, 2019
We explore the properties of holographic entanglement of purification (EoP) for two disjoint strips in the Schwarzschild-AdS black brane and the Vaidya-AdS black brane spacetimes.
Run-Qiu Yang, Cheng-Yong Zhang, Wen-Ming Li   +2 more
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Shuffling Quantum Field Theory

Letters in Mathematical Physics, 2000
13p, 5 fig.(eps), ref.
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Braided Quantum Field Theory [PDF]

Communications in Mathematical Physics, 2001
We develop a general framework for quantum field theory on noncommutative spaces, i.e., spaces with quantum group symmetry. We use the path integral approach to obtain expressions for $n$-point functions. Perturbation theory leads us to generalised Feynman diagrams which are braided, i.e., they have non-trivial over- and under-crossings. We demonstrate
openaire   +5 more sources