Results 11 to 20 of about 18,438,198 (314)

AdS$_3$ Vacuum State from Four Minkowski Vacuum States [PDF]

open access: yes, 2023
We show that a tensor product of four specific $1{+}2$ Minkowski vacuum states is a self-consistent vacuum state for an infinite set of three-dimensional anti-de Sitter (AdS$_3$) spacetimes if their parity and time-reversal symmetry are broken in a particular way. The infinite set consists of pairs of all AdS$_3$ with non-zero unique scalar curvatures.
Kovalsky, Lucas Kocia
openaire   +3 more sources

Charged state of a spherical plasma in vacuum [PDF]

open access: yesPhysical Review E, 2005
The stationary state of a spherically symmetric plasma configuration is investigated in the limit of immobile ions and weak collisions. Configurations with small radii are positively charged as a significant fraction of the electron population evaporates during the equilibration process, leaving behind an electron distribution function with an energy ...
CORNOLTI, FULVIO   +3 more
openaire   +3 more sources

Entangled Vacuum State for Accelerated Observers

open access: yesInternational Journal of Theoretical Physics, 2022
Entanglement of Dirac fields has been studied and it is known to decrease with increasing acceleration when a quantum state is shared between users in non-inertial frames. A new form of an entangled vacuum state observed by the accelerated observer is postulated in which it is assumed that entanglement is present between the modes of the quantum field ...
Leyli Esmaelifar   +2 more
openaire   +3 more sources

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   +3 more sources

Quantum teleportation with squeezed vacuum states [PDF]

open access: yesPhysical Review A, 1999
We show how the partial entanglement inherent in a two mode squeezed vacuum state admits two different teleportation protocols. These two protocols refer to the different kinds of joint measurements that may be made by the sender. One protocol is the recently implemented quadrature phase approach of Braunstein and Kimble[Phys. Rev.
Milburn, G. J., Braunstein, Samuel L.
openaire   +6 more sources

Superbunched bright squeezed vacuum state [PDF]

open access: yesOptics Letters, 2012
In this Letter, we experimentally study the statistical properties of a bright squeezed vacuum state containing up to 10(13) photons per mode (10 μJ per pulse), produced via high-gain parametric down conversion (PDC). The effects of bunching and superbunching of photons were observed for a single-mode PDC radiation by second-order intensity correlation
Iskhakov, T.   +4 more
openaire   +3 more sources

Squeezed states in the de Sitter vacuum [PDF]

open access: yesPhysical Review D, 2003
15 pages, no figures.
Einhorn, Martin B., Larsen, Finn
openaire   +2 more sources

Prediction of activities of all components in Sn-Ag-Cu and Sn-Ag-Cu-Zn lead-free solders using modified molecular interaction volume model

open access: yesResults in Chemistry, 2021
In this study, the activities of binary alloys (Sn-Ag, Sn-Cu, Sn-Zn, Ag-Cu, Ag-Zn, Cu-Zn) and ternary alloys (Sn-Ag-Cu, Sn-Ag-Zn, Sn-Cu-Zn) were predicted using molecular interaction volume model (MIVM), modified MIVM (M-MIVM), Wilson equation, and ...
Yanjun You   +5 more
doaj   +1 more source

Stability of Yang Mills vacuum state

open access: yesNuclear Physics B, 2023
32 pages, the consideration was extended to include the nonlinear interaction of the zero and negative/unstable modes, improved version, to be published in Nucl.Phys ...
openaire   +4 more sources

Preparation of lithium using vacuum carbothermal reduction of LiAlO2

open access: yesMaterials Research Express, 2020
In this study, we investigated the preparation process of lithium metal using a novel carbothermic reduction process. Herein, thermodynamic calculations and experimental research methods were used to investigate the novel carbothermal reduction process ...
Lei Shi   +7 more
doaj   +1 more source

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