Results 31 to 40 of about 464,290 (281)
Self-tuning vacuum variable and cosmological constant [PDF]
, 2008 A spacetime-independent variable is introduced which characterizes a Lorentz-invariant self-sustained quantum vacuum. For a perfect (Lorentz-invariant) quantum vacuum, the self-tuning of this variable nullifies the effective energy density which enters ...
Klinkhamer, F. R., Volovik, G. E.
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Physics Letters B, 2015 In this article, we investigate the nonlocal behavior of the quantum state of fermionic system having the alpha vacuum. We evaluate the maximum violation of CHSH inequality in the quantum state.
Younghun Kwon
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Quantum field theory and classical optics: determining the fine structure constant [PDF]
, 2016 The properties of the vacuum are described by quantum physics including the response to external fields such as electromagnetic radiation. Of the two parameters that govern the details of the electromagnetic field dynamics in vacuum, one is fixed by the ...
Hawton, Margaret +2 more
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Dynamical Vacuum in Quantum Cosmology [PDF]
General Relativity and Gravitation, 1998 By regarding the vacuum as a perfect fluid with equation of state p=-rho, de Sitter's cosmological model is quantized. Our treatment differs from previous ones in that it endows the vacuum with dynamical degrees of freedom. Instead of being postulated from the start, the cosmological constant arises from the degrees of freedom of the vacuum regarded as
Alvarenga, Flávio G., Lemos, Nivaldo A.
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Probing the symmetry breaking of a light–matter system by an ancillary qubit
Nature Communications, 2023 Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena and promise new applications in quantum technologies.
Shuai-Peng Wang +6 more
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Fermionic microstates within Painlev\'e-Gullstrand black hole [PDF]
, 2001 We consider the quantum vacuum of fermionic field in the presence of a black-hole background as a possible candidate for the stabilized black hole. The stable vacuum state (as well as thermal equilibrium states with arbitrary temperature) can exist if we
A. D. Sakharov +28 more
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Detecting the rotating quantum vacuum [PDF]
Physical 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
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Quantum vacuum properties of the intersubband cavity polariton field [PDF]
, 2005 We present a quantum description of a planar microcavity photon mode strongly coupled to a semiconductor intersubband transition in presence of a two-dimensional electron gas.
A. Lambrecht +8 more
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Quantum Vacuum Photon Modes and Superhydrophobicity [PDF]
Physical Review Letters, 2015 Nanostructures are commonly used for developing superhydrophobic surfaces. However, available wetting theoretical models ignore the effect of vacuum photon-modes alteration on van der Waals forces and thus on hydrophobicity. Using first-principle calculations, we show that superhydrophibicity of nanostructured surfaces is dramatically enhanced by ...
Dellieu, Louis +3 more
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About thermodynamics of Schwarzschild black holes in a three-dimensional quantum vacuum with generalized uncertainty relations [PDF]
Kragujevac Journal of ScienceBy considering a modified version of generalized uncertainty relations in the model of a three-dimensional dynamic quantum vacuum characterized by a variable energy density, new relevant perspectives of analysis of the thermodynamics of Schwarzschild ...
Fiscaletti Davide
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