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Trajectory of a flying plasma mirror traversing a target with density gradient
- Source :
- Phys.Plasmas, Phys.Plasmas, 2020, 27 (12), pp.123106. ⟨10.1063/5.0012374⟩
- Publication Year :
- 2020
- Publisher :
- HAL CCSD, 2020.
-
Abstract
- It has been proposed that laser-induced relativistic plasma mirror can accelerate if the plasma has a properly tailored density profile. Such accelerating plasma mirrors can serve as analog black holes to investigate Hawking evaporation and the associated information loss paradox. Here we reexamine the underlying dynamics of mirror motion in a graded-density plasma to provide an explicit trajectory as a function of the plasma density and its gradient. Specifically, a decreasing plasma density profile (down-ramp) along the direction of laser propagation would in general accelerate the mirror. In particular, a constant-plus-exponential density profile would generate the Davies-Fulling trajectory with a well-defined analog Hawking temperature, which is sensitive to the plasma density gradient but not to the density itself. We show that without invoking nano-fabricated thin-films, a much lower density gas target at, for example, $\sim 1\times 10^{17}{\rm cm}^{-3}$, would be able to induce an analog Hawking temperature, $k_{_B}T_{_H}\sim 6.6 \times 10^{-2}{\rm eV}$, in the far-infrared region. We hope that this would help to better realize the experiment proposed by Chen and Mourou.<br />7 pages
- Subjects :
- Density gradient
Black hole information paradox
Evaporation
FOS: Physical sciences
General Relativity and Quantum Cosmology (gr-qc)
01 natural sciences
General Relativity and Quantum Cosmology
010305 fluids & plasmas
law.invention
Relativistic plasma
law
0103 physical sciences
010306 general physics
Physics
Plasma
Function (mathematics)
Condensed Matter Physics
Laser
Physics - Plasma Physics
[PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph]
Plasma Physics (physics.plasm-ph)
Trajectory
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
Atomic physics
Optics (physics.optics)
Physics - Optics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Phys.Plasmas, Phys.Plasmas, 2020, 27 (12), pp.123106. ⟨10.1063/5.0012374⟩
- Accession number :
- edsair.doi.dedup.....f52b21c4e49838da61a34a9ac9232462