Results 11 to 20 of about 174,677 (231)
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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Physical Review Research, 2022 The existence of quantum nonliquid states and fracton orders, both gapped and gapless states, challenges our understanding of phases of entangled matter. We generalize the cellular topological states to liquid or nonliquid cellular states.
Juven Wang
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Bosons after Symmetry Breaking in Quantum Field Theory
, 2007 We present a unified description of the spontaneous symmetry breaking and its associated bosons in fermion field theory. There is no Goldstone boson in the fermion field theory models of Nambu-Jona-Lasinio, Thirring and QCD$_2$ after the chiral symmetry ...
Fujita, Takehisa +2 more
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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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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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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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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 Poincar 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
openaire +3 more sources
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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SciPost Physics, 2023 We present a quantitative and fully non-perturbative description of the ergodic phase of quantum chaos in the setting of two-dimensional gravity. To this end we describe the doubly non-perturbative completion of semiclassical 2D gravity in terms of its ...
Alexander Altland, Boris Post, Julian Sonner, Jeremy van der Heijden, Erik Verlinde
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Selection rules for breaking selection rules
New Journal of Physics, 2021 Floquet systems often exhibit dynamical symmetries (DS) that govern the time-dependent dynamics and result in selection rules. When a DS is broken, selection rule deviations are expected.
Matan Even Tzur +3 more
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