Results 1 to 10 of about 8,112 (163)
Lorentz symmetry breaking as a quantum field theory regulator [PDF]
Physical Review D, 2009 Perturbative expansions of relativistic quantum field theories typically contain ultraviolet divergences requiring regularization and renormalization. Many different regularization techniques have been developed over the years, but most regularizations require severe mutilation of the logical foundations of the theory.
Matt Visser
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Tunneling in quantum field theory with spontaneous symmetry breaking [PDF]
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1995 8 pages, latex, 2 figures appended (uuencoded postscript); complete postscript file is available at ftp://dept.physics.upenn.edu/pub/Kusenko/UPR671T ...
Alexander Kusenko
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Spontaneous symmetry breaking in local gauge quantum field theory; the Higgs mechanism [PDF]
Communications in Mathematical Physics, 1977 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Franco Strocchi, Strocchi F
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Physics Letters B, 2018 Motivated by the gauge theory of gravity with local scaling symmetry proposed recently in [1,2], we investigate whether the scalar field therein can be responsible for the inflation. We show that the classical theory would suffer from the difficulty that
Yong Tang, Yue-Liang Wu
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Spontaneous symmetry breaking in twisted noncommutative quantum theories [PDF]
Physical Review D, 2009 We analyse aspects of symmetry breaking for Moyal spacetimes within a quantisation scheme which preserves the twisted Poincaré symmetry. Towards this purpose, we develop the LSZ approach for Moyal spacetimes. The latter gives a formula for scattering amplitudes on these spacetimes which can be obtained from the corresponding ones on the commutative ...
Balachandran, AP +2 more
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Qubit decoherence and symmetry restoration through real-time instantons
Physical Review Research, 2022 A parametrically driven quantum oscillator, stabilized by a nonlinear dissipation, exhibits a spontaneous breaking of the parity symmetry. It results in the quantum bistability, corresponding to a Bloch sphere of dark states.
Foster Thompson, Alex Kamenev
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Entanglement asymmetry as a probe of symmetry breaking
Nature Communications, 2023 Symmetry and symmetry breaking are two pillars of modern quantum physics. Still, quantifying how much a symmetry is broken is an issue that has received little attention.
Filiberto Ares +2 more
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Gravitational coupling of QED and QCD: 3- and 4- point functions in momentum space [PDF]
EPJ Web of Conferences, 2022 Conformal symmetry has important consequences for strong interactions at short distances and provides powerful tools for practical calculations. Even if the Lagrangians of Quantum Chromodynamics (QCD) and Electrodynamics (QED) are invariant under ...
Maglio Matteo Maria, Tommasi Riccardo
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Theory of Dynamical Phase Transitions in Quantum Systems with Symmetry-Breaking Eigenstates
Physical Review Letters, 2023 4+ pages, 4 figures.
Ángel L. Corps, Armando Relaño
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SciPost Physics, 2023 The Majorana lattice gauge theory purely composed of Majorana fermions on square lattice is studied throughly. The ground state is obtained exactly and exhibits the coexistence of symmetry breaking and topological order.
Jian-Jian Miao
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