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Ultrafast probing of isotope-induced explicit symmetry breaking in ethylene [PDF]

open access: goldCommunications Chemistry
Symmetry governs nature’s laws, yet many of the natural phenomena occur due to the breakdown of symmetry. Here, we show how isotope-induced inversion symmetry breaking influences ultrafast photoisomerization processes in ethylene.
Alessandro Nicola Nardi   +6 more
doaj   +4 more sources

Spontaneous and Explicit Spacetime Symmetry Breaking in Einstein-Cartan Theory with Background Fields [PDF]

open access: greenSymmetry, 2023
Explicit and spontaneous breaking of spacetime symmetry under diffeomorphisms, local translations, and local Lorentz transformations due to the presence of fixed background fields is examined in Einstein–Cartan theory. In particular, the roles of torsion
Robert Bluhm, Zhi Yu
openalex   +3 more sources

Generation of new symmetries from explicit symmetry breaking [PDF]

open access: diamondJournal of Physics: Conference Series, 2021
We study how the explicit symmetry breaking, through a continuous parameter in the Lagrangian, can actually lead to the creation of different types of symmetries. As examples we consider the motion of a relativistic particle in a curved background, where
N. Dimakis
openalex   +2 more sources

Spontaneous and explicit symmetry breaking of thermoacoustic eigenmodes in imperfect annular geometries [PDF]

open access: hybridJournal of Fluid Mechanics, 2022
This article deals with the symmetry breaking of azimuthal thermoacoustic modes in annular combustors. Using a nominally symmetric annular combustor, we present experimental evidence of a predicted spontaneous reflectional symmetry breaking, and also an ...
Thomas Indlekofer   +3 more
openalex   +2 more sources

Pseudo-spontaneous U(1) symmetry breaking in hydrodynamics and holography [PDF]

open access: yesJournal of High Energy Physics, 2022
We investigate the low-energy dynamics of systems with pseudo-spontaneously broken U(1) symmetry and Goldstone phase relaxation. We construct a hydrodynamic framework which is able to capture these, in principle independent, effects.
Martin Ammon   +4 more
doaj   +2 more sources

Holographic entanglement density for spontaneous symmetry breaking [PDF]

open access: yesJournal of High Energy Physics, 2022
We investigate the properties of the holographic entanglement entropy of the systems in which the U(1) or the translational symmetry is broken spontaneously.
Hyun-Sik Jeong   +2 more
doaj   +2 more sources

Spontaneous and explicit parity-time-symmetry breaking in drift-wave instabilities [PDF]

open access: greenPhysical Review E, 2021
A method of parity-time- (PT) symmetry analysis is introduced to study the high-dimensional, complicated parameter space of drift-wave instabilities. We show that spontaneous PT-symmetry breaking leads to the ion temperature gradient instability of drift
Hong Qin   +3 more
openalex   +3 more sources

Explicit spacetime-symmetry breaking and the dynamics of primordial fields [PDF]

open access: greenPhysical Review D, 2022
We study the effects of explicit spacetime-symmetry breaking on primordial tensor fluctuations using an effective-field theory for Lorentz/CPT violation.
A. Nilsson
openalex   +3 more sources

Interplay of dynamical and explicit chiral symmetry breaking effects on a quark [PDF]

open access: hybridPhysical Review D, 2019
The relative contributions of explicit and dynamical chiral symmetry breaking in QCD models of the quark-gap equation are studied in dependence of frequently employed ans\"atze for the dressed interaction and quark-gluon vertex.
Fernando E. Serna   +2 more
openalex   +3 more sources

Nonlocal complex short pulse equation in $${\mathcal{P}\mathcal{T}}$$ -symmetry like symmetry breaking, breather–grammian interactions and soliton solutions [PDF]

open access: yesScientific Reports
Research on $${\mathcal{P}\mathcal{T}}$$ -symmetry and spontaneous symmetry breaking captivates contemporary scholars due to its extensive applicability in several fields, including microwave propagation and nonlinear optics.
Zeeshan Amjad   +4 more
doaj   +2 more sources

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