Results 61 to 70 of about 27,292 (170)

Lorentz invariance without trans-Planckian physics?

open access: yesPhysics Letters B, 2013
9 pages, 1 figure, section about fluctuating cutoff added, final version to appear in ...
openaire   +2 more sources

Unparticle physics with broken scale invariance

open access: yesPhysics Letters B, 2008
19 pages, 8 figures, 2 ...
Barger, Vernon   +4 more
openaire   +2 more sources

CPT invariance and neutrino physics

open access: yes, 2010
CPT invariance in neutrino physics has attracted attention after the revival of the hypothetical idea that neutrino and antineutrino might have nonequal masses ($m_{\bar } \neq m_ $) when realizing neutrino oscillations as a new sensitive phenomenon to search for the violation of this fundamental symmetry.
openaire   +2 more sources

Seeking for a Fundamental Quantum Arrow of Time: Time Reversal and the Symmetry-To-Reality Inference in Standard Quantum Mechanics

open access: yesFrontiers in Physics, 2018
In this paper I shall shed some doubts on a widely-held claim: standard quantum mechanics is time-reversal invariant, and thereby, blind to the direction of time.
Cristian López, Cristian López
doaj   +1 more source

Bounce Cosmology in a Locally Scale Invariant Physics with a U(1) Symmetry

open access: yesUniverse
An asymmetric non-singular bouncing cosmological model is proposed in the framework of a locally scale-invariant scalar-tensor version of the standard model of particle physics and gravitation. The scalar field ϕ is complex.
Meir Shimon
doaj   +1 more source

Spacetime colour reconnection in Herwig 7

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
We present a model for generating spacetime coordinates in the Monte Carlo event generator Herwig 7, and perform colour reconnection by minimizing a boost-invariant distance measure of the system.
Johannes Bellm   +4 more
doaj   +1 more source

Physical consequences of Lindbladian invariance transformations

open access: yesPhysical Review Research
On its own, the invariance properties of Markovian master equations have mostly played a mathematical or computational role in the evaluation of quantum open system dynamics. Because all forms of the equation lead to the same time evolution for the state of the system, the fixation of a particular form has only gained physical meaning when correlated ...
Yohan Vianna de Almeida   +2 more
openaire   +3 more sources

De Sitter quantum gravity and the emergence of local algebras

open access: yesJournal of High Energy Physics
Quantum theories of gravity are generally expected to have some degree of non-locality, with familiar local physics emerging only in a particular limit. Perturbative quantum gravity around backgrounds with isometries and compact Cauchy slices provides an
Molly Kaplan   +3 more
doaj   +1 more source

Physics and chemistry from parsimonious representations: image analysis via invariant variational autoencoders

open access: yesnpj Computational Materials
Electron, optical, and scanning probe microscopy methods are generating ever increasing volume of image data containing information on atomic and mesoscale structures and functionalities.
Mani Valleti   +3 more
doaj   +1 more source

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