Results 21 to 30 of about 7,892 (272)
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Anomaly-free scale symmetry and gravity
Physics Letters B, 2023 In this Letter, we address the question of whether the conformal invariance can be considered as a global symmetry of a theory of fundamental interactions.
Mikhail Shaposhnikov, Anna Tokareva
doaj +1 more source
Erratum: Einstein gravity as a symmetry-breaking effect in quantum field theory [PDF]
Reviews of Modern Physics, 1983 Stephen L. Adler
openalex +2 more sources