Results 1 to 10 of about 73,526 (268)

Renormalization in open quantum field theory. Part I. Scalar field theory

open access: yesJournal of High Energy Physics, 2017
While the notion of open quantum systems is itself old, most of the existing studies deal with quantum mechanical systems rather than quantum field theories.
Avinash Baidya   +3 more
doaj   +3 more sources

Light neutralino dark matter in U(1)XSSM

open access: yesNuclear Physics B, 2021
The U(1)X extension of the minimal supersymmetric standard model (MSSM) is called as U(1)XSSM with the local gauge group SU(3)C×SU(2)L×U(1)Y×U(1)X. U(1)XSSM has three singlet Higgs superfields beyond MSSM.
Shu-Min Zhao   +5 more
doaj   +1 more source

Linear Superposition as a Core Theorem of Quantum Empiricism

open access: yesUniverse, 2022
Clarifying the nature of the quantum state |Ψ⟩ is at the root of the problems with insight into counter-intuitive quantum postulates. We provide a direct—and math-axiom free—empirical derivation of this object as an element of a vector space ...
Yurii V. Brezhnev
doaj   +1 more source

Incorporating element doping and quantum dot embedding effects to enhance the thermoelectric properties of higher manganese silicides

open access: yesJournal of Materiomics, 2021
Element doping and nano-inclusion embedding are effective approaches to enhance the electrical conductivities and decrease the lattice thermal conductivities of thermoelectric (TE) materials, respectively.
Qing Wang   +9 more
doaj   +1 more source

Anyon condensation: coherent states, symmetry enriched topological phases, Goldstone theorem, and dynamical rearrangement of symmetry

open access: yesJournal of High Energy Physics, 2022
Although the mathematics of anyon condensation in topological phases has been studied intensively in recent years, a proof of its physical existence is tantamount to constructing an effective Hamiltonian theory. In this paper, we concretely establish the
Yuting Hu   +3 more
doaj   +1 more source

Electric dipole moments of neutron and heavy quarks c, t in CP violating U(1)XSSM

open access: yesNuclear Physics B, 2022
We study and analyze the electric dipole moments (EDMs) of neutron and heavy quarks c, t in a CP-violating (CPV) supersymmetric U(1) extension of the standard model called U(1)XSSM, whose local gauge group is U(1)X×SU(3)C×SU(2)L×U(1)Y.
Ben Yan, Shu-Min Zhao, Tai-Fu Feng
doaj   +1 more source

Quantum scars in quantum field theory

open access: yesPhysical Review D, 2023
We develop the theory of quantum scars for quantum fields. By generalizing the formalisms of Heller and Bogomolny from few-body quantum mechanics to quantum fields, we find that unstable periodic classical solutions of the field equations imprint themselves in a precise manner on bands of energy eigenfunctions.
Jordan Cotler, Annie Y. Wei
openaire   +2 more sources

QUANTUM FIELD THEORY IN GRAPHENE [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2012
This is a short non-technical introduction to applications of the Quantum Field Theory methods to graphene. We derive the Dirac model from the tight binding model and describe calculations of the polarization operator (conductivity). Later on, we use this quantity to describe the Quantum Hall Effect, light absorption by graphene, the Faraday effect ...
Fialkovsky, I. V., Vassilevich, D. V.
openaire   +3 more sources

Quantum Algorithms for Quantum Field Theories [PDF]

open access: yesScience, 2012
Quantum Leap? Quantum computers are expected to be able to solve some of the most difficult problems in mathematics and physics. It is not known, however, whether quantum field theories (QFTs) can be simulated efficiently with a quantum computer.
Jordan, Stephen P.   +2 more
openaire   +4 more sources

Unfree gauge symmetry in the BV formalism

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
The BV formalism is proposed for the theories where the gauge symmetry parameters are unfree, being constrained by differential equations.
D. S. Kaparulin, S. L. Lyakhovich
doaj   +1 more source

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