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Vacuum Energy, the Casimir Effect, and Newton’s Non-Constant

open access: yesUniverse, 2023
The idea of quantum mechanical vacuum energy contributing to the cosmological vacuum energy density is not new. However, despite the persisting cosmological constant problem, few investigations have focused on this subject.
Benjamin Koch   +3 more
doaj   +1 more source

Electromagnetic shocks in the quantum vacuum [PDF]

open access: yesPhysical Review D, 2019
The interaction of two counter-propagating electromagnetic waves in a vacuum is analyzed within the framework of the Heisenberg-Euler formalism in quantum electrodynamics. The nonlinear electromagnetic wave in the quantum vacuum is characterized by wave steepening, subsequent generation of high order harmonics and electromagnetic shock wave formation ...
Kadlecová, H., Korn, G., Bulanov, S. V.
openaire   +2 more sources

QUANTUM VACUUM AND ANOMALIES [PDF]

open access: yesInternational Journal of Modern Physics A, 1995
Chiral, conformal and ghost number anomalies are discussed from the viewpoint of the quantum vacuum in Hamiltonian formalism. After introducing the energy cutoff, we derive known anomalies in a new way. We give an interpretation of the anomalies in connection with the zero-point fluctuation of bosonic or fermionic field.
openaire   +2 more sources

Detecting the rotating quantum vacuum [PDF]

open access: yesPhysical Review D, 1996
We derive conditions for rotating particle detectors to respond in a variety of bounded spacetimes and compare the results with the folklore that particle detectors do not respond in the vacuum state appropriate to their motion. Applications involving possible violations of the second law of thermodynamics are briefly addressed.
, Davies, , Dray, , Manogue
openaire   +2 more sources

Quantum non-Gaussianity criteria based on vacuum probabilities of original and attenuated state

open access: yesNew Journal of Physics, 2021
Quantum non-Gaussian states represent an important class of highly non-classical states whose preparation requires quantum operations or measurements beyond the class of Gaussian operations and statistical mixing.
Jaromír Fiurášek   +2 more
doaj   +1 more source

Photon acceleration in vacuum [PDF]

open access: yes, 2006
A new process associated with the nonlinear optical properties of the electromagnetic vacuum, as predicted by quantum electrodynamics, is described. This can be called photon acceleration in vacuum, and corresponds to the frequency shift that takes place
Mendonça, J.T.   +3 more
core   +1 more source

Laser-induced rotation and cooling of a trapped microgyroscope in vacuum [PDF]

open access: yes, 2013
This work was supported by the UK Engineering and Physical Sciences Research Council (EPSRC grant numbers: EP/J01771X/1 and EP/G061688/1)Quantum state preparation of mesoscopic objects is a powerful playground for the elucidation of many physical ...
Arita, Yoshihiko   +2 more
core   +1 more source

Vacuum, Space-Time, Matter and the Models of Smarandache Geometry [PDF]

open access: yes, 2012
Hu Chang-Wei considers through analysis on the basis of the derivation of the Lorentz transformation by means of fluid mechanics, that Newtonian absolute space-time theory is most basic and real space-time theory, where the physical vacuum is a ...
Hu, Chang-Wei
core   +1 more source

The Quantum Yang–Mills Theory

open access: yesUniverse, 2023
In axiomatic quantum field theory, the postulate of the uniqueness of the vacuum (a pure vacuum state) is independent from the other axioms and equivalent to the cluster decomposition property. The latter, however, implies a Coulomb or Yukawa attenuation
Dimitrios Metaxas
doaj   +1 more source

Quantum vacuum heuristics [PDF]

open access: yesJournal of Modern Optics, 2003
Didactic heuristic arguments, based on the quantum mechanics of the vacuum and the structure of spacetime, are reviewed concerning particle creation from the vacuum by an electric field, vacuum radiation in an accelerated frame, black-hole radiation, minimum-mass black holes, spacetime breakdown, maximal proper acceleration, the spacetime tangent ...
openaire   +2 more sources

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