Dark matter as an effect of the quantum vacuum
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-018-3296-z
Abstract: The interaction between the quantum vacuum and a weak gravitational field is calculated for the vacuum fields of quantum electrodynamics. The result shows that the vacuum state is modified by the gravitational field, giving rise… read more here.
Keywords: dark matter; matter effect; quantum vacuum;
Correlations detected in a quantum vacuum
Sign Up to like & getrecommendations! Published in 2019 at "Nature"
DOI: 10.1038/d41586-019-01083-z
Abstract: A vacuum as described by quantum mechanics is perhaps the most fundamental but mysterious state in physics. The discovery of correlations between electric-field fluctuations in such a vacuum represents a major advance.Searching for interferences between… read more here.
Keywords: detected quantum; correlations detected; vacuum; quantum vacuum ... See more keywords
Quantum vacuum under mixed boundary conditions: the case for curved spacetime
Sign Up to like & getrecommendations! Published in 2020 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/ab8bb7
Abstract: curved spacetime Borzoo Nazari ∗ School of Surveying and Geospatial Engineering, College of Engineering, University of Tehran, Tehran, Iran Abstract Influence of gravity on the quantum vacuum of a massless minimally coupled scalar field under… read more here.
Keywords: energy; quantum vacuum; boundary conditions; quantum ... See more keywords
Exploring the quantum vacuum via ultraintense laser-induced refraction of light
Sign Up to like & getrecommendations! Published in 2024 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ad21b7
Abstract: The rapid progress of ultraintense laser technology provides a novel route to explore the quantum vacuum effect in the laboratory. Here, we propose using oblique collisions between an ultraintense pump laser and an x-ray probe… read more here.
Keywords: laser; ultraintense laser; refraction; quantum vacuum ... See more keywords
Limitations of the paraxial beam model in the study of quantum vacuum signals
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review D"
DOI: 10.1103/bmxl-776l
Abstract: Studies of nonlinear quantum vacuum signals often model the driving laser fields as paraxial beams. This in particular holds for analytic approaches. While this allows for reliable predictions in most situations, there are also notable… read more here.
Keywords: beam model; vacuum signals; quantum vacuum; paraxial beam ... See more keywords
Quantum vacuum signatures in multicolor laser pulse collisions
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.103.076009
Abstract: Quantum vacuum fluctuations give rise to effective non-linear interactions between electromagnetic fields. A prominent signature of quantum vacuum nonlinearities driven by macroscopic fields are signal photons differing in characteristic properties such as frequency, propagation direction… read more here.
Keywords: vacuum; laser; pulse collisions; quantum vacuum ... See more keywords
Energetics of quantum vacuum friction: Field fluctuations
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.116006
Abstract: Xin Guo ID , ∗ Kimball A. Milton ID , † Gerard Kennedy ID , ‡ William P. McNulty ID , § Nima Pourtolami ID , ¶ and Yang Li ID 4, ∗∗ H. L.… read more here.
Keywords: physics; friction field; field fluctuations; vacuum friction ... See more keywords
Numerical optimization of quantum vacuum signals
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/physrevd.110.076009
Abstract: The identification of prospective scenarios for observing quantum vacuum signals in high-intensity laser experiments requires both accurate theoretical predictions and the exploration of high-dimensional parameter spaces. Numerical simulations address the first requirement, while optimization provides… read more here.
Keywords: vacuum signals; quantum vacuum; numerical optimization; optimization ... See more keywords
Quantum vacuum fluctuations in presence of dissipative bodies: Dynamical approach for nonequilibrium and squeezed states
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.025009
Abstract: This work contributes to the study of non-equilibrium aspects of the Casimir forces with the introduction of squeezed states in the calculations. Throughout this article two main results can be found, being both strongly correlated.… read more here.
Keywords: presence; field; dissipative bodies; squeezed states ... See more keywords
How the huge energy of quantum vacuum gravitates to drive the slow accelerating expansion of the Universe
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.103504
Abstract: We investigate the gravitational property of the quantum vacuum by treating its large energy density predicted by quantum field theory seriously and assuming that it does gravitate to obey the equivalence principle of general relativity.… read more here.
Keywords: expansion; expansion universe; energy; accelerating expansion ... See more keywords
Effects of the Quantum Vacuum at a Cosmic Scale and of Dark Energy
Sign Up to like & getrecommendations! Published in 2024 at "Entropy"
DOI: 10.3390/e26121042
Abstract: The Einstein equation in a semiclassical approximation is applied to a spherical region of the universe, with the stress-energy tensor consisting of the mass density and pressure of the ΛCDM cosmological model plus an additional… read more here.
Keywords: energy; vacuum cosmic; quantum vacuum; cosmic scale ... See more keywords