Ion trap analogue of particle creation in black holes and cosmology
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.033407
Abstract: We consider the transversal modes of ions in a linear radio frequency (rf) trap where we control the time dependent axial confinement to show that we can excite quanta of motion via a two-mode squeezing… read more here.
Keywords: cosmology; ion trap; particle creation; black holes ... See more keywords
Entropy production due to adiabatic particle creation in a holographic dissipative cosmology
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.063512
Abstract: Cosmological adiabatic particle creation results in the generation of irreversible entropy. The evolution of the irreversible entropy is examined in a flat Friedmann--Robertson--Walker universe at late times, using a dissipative model with a power-law term… read more here.
Keywords: cosmology; adiabatic particle; particle creation; entropy ... See more keywords
Cosmological particle creation in the little bang
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.103.116014
Abstract: Particle production by expanding in the future light cone scalar quantum field is studied by assuming that the initial state is associated with the quasi equilibrium statistical operator corresponding to fluid dynamics. We calculate particle… read more here.
Keywords: creation little; particle creation; little bang; particle production ... See more keywords
Particle creation and entanglement in a dispersive model with step velocity profile
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.107.105005
Abstract: We investigate particle creation and entanglement structure in a dispersive model with subliminal dispersion relation. Assuming the step function spatial velocity profile of the background flow, mode functions for a massless scalar field is exactly… read more here.
Keywords: particle creation; velocity; creation entanglement;
Particle Creation in Bouncing Cosmologies
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DOI: 10.1103/physrevd.95.023523
Abstract: We investigate scalar particle creation in a set of bouncing models where the bounce occurs due to quantum cosmological effects described by the Wheeler-DeWitt equation. The scalar field can be either conformally or minimally coupled… read more here.
Keywords: energy; case; particle creation; energy density ... See more keywords
Particle creation by de Sitter black holes revisited
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.125013
Abstract: Creation of thermal distribution of particles by a black hole is independent of the detail of gravitational collapse, making the construction of the eternal horizons suffice to address the problem in asymptotically flat spacetimes. For… read more here.
Keywords: particle creation; black holes; sitter; sitter black ... See more keywords
Quantum fluctuations and cosmological particle creation from oscillating massive scalar field in two-mode quantum optical states
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271820501199
Abstract: In this paper, by the use of entangled and nonentangled coherent and squeezed state formalism of two-mode nonclassical states, we studied the chaotic inflationary model of a massive scalar field with quadratic potential in the… read more here.
Keywords: massive scalar; two mode; field; scalar field ... See more keywords
Gravitationally induced particle creation in cubic gravity
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Geometric Methods in Modern Physics"
DOI: 10.1142/s0219887821501061
Abstract: In this work, we consider gravitationally induced particle creation scenario to discuss the validity of thermodynamic laws in the context of cubic gravity which is based on an invariant term and constructed from cubic contraction… read more here.
Keywords: particle creation; creation; gravitationally induced; cubic gravity ... See more keywords
Quantum simulation of particle creation in curved space-time
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DOI: 10.1371/journal.pone.0229382
Abstract: Conversion of vacuum fluctuations into real particles was first predicted by L. Parker considering an expanding universe, followed in S. Hawking’s work on black hole radiation. Since their experimental observation is challenging, analogue systems have… read more here.
Keywords: quantum simulation; space time; space; particle creation ... See more keywords
Stochastic Particle Creation: From the Dynamical Casimir Effect to Cosmology
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DOI: 10.3390/e25010151
Abstract: We study a stochastic version of the dynamical Casimir effect, computing the particle creation inside a cavity produced by a random motion of one of its walls. We first present a calculation perturbative in the… read more here.
Keywords: stochastic particle; particle creation; dynamical casimir; cosmology ... See more keywords