Unruh effect and Schwinger pair creation under extreme acceleration by ultraintense lasers

Kim, Chul Min; Kim, Sang Pyo

doi:10.48550/arxiv.1712.02477

Cited by 5 publications

(9 citation statements)

References 14 publications

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“…Upon colliding with a relativistic electron, an ultra-intense laser pulse can drive the electron in the opposite direction up to the speed of light within a fraction of an optical period. 144 A rough estimation of the acceleration is given as a = c/(λ/c), which is about 10 23 m/s 2 for the laser wavelength λ ∼ 1 µm. The corresponding Unruh temperature is 3.5 × 10 −2 eV.…”

Section: Laboratory Astrophysics Using Ultra-intense Lasersmentioning

confidence: 99%

Astrophysics in Strong Electromagnetic Fields and Laboratory Astrophysics

Kim

2019

Preprint

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Recent observations of gravitational waves from binary mergers of black holes or neutron stars and the rapid development of ultra-intense lasers lead strong field physics to a frontier of new physics in the 21st century. Strong gravity phenomena are most precisely described by general relativity, and lasers that are described by another most precisely tested quantum electrodynamics (QED) can be focused into a tiny area in a short period through the chirped pulse amplification and generate extremely high intensity electromagnetic (EM) fields beyond the conventional methods. It is physically interesting to study QED phenomena in curved spacetimes, in which both strong gravitational and electromagnetic fields play important roles. There are many sources for strong gravitational and electromagnetic fields in the sky or universe, such highly magnetized neutron stars, magnetized black holes, and the early universe. We review quantum field theoretical frameworks for QED both in the Minkowski spacetime and curved spacetimes, in particular, charged black holes and the early universe, and discuss the QED physics in strong EM fields, such as the vacuum polarization and Schwinger pair production and their implications to astrophysics and cosmology.

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Section: Laboratory Astrophysics Using Ultra-intense Lasersmentioning

confidence: 99%

Astrophysics in Strong Electromagnetic Fields and Laboratory Astrophysics

Kim

2019

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“…The quantum electrodynamics vacuum polarization and the vacuum persistence amplitude, and the Schwinger pair creation in an accelerating frame when a constant electric field exists in the Minkowski spacetime. A curious theoretical model is an accelerating observer in de Sitter space, in which the Unruh effect and the Gibbons-Hawking radiation are intersecting and point to an effective temperature of the geometric mean of the Unruh and the Hawking temperature [53]. In this work, our main goal is to quantify entanglement between the particles created due to the Schwinger and the Unruh effect in the right (R) and left (L) wedge.…”

Section: Introductionmentioning

confidence: 99%

Schwinger effect and a uniformly accelerated observer

Kaushal¹

2022

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In this article, we have solved the Dirac equation explicitly and performed the field quantization in the Rindler spacetime in the presence of background electromagnetic fields of constant strengths, and in and out modes are computed. We next consider the full Rindler right and left wedges and construct the local and global modes and their Bogoliubov transformations. Using the squeezed state expansion obtained from the Bogoliubov transformation, the spectra of created particles are computed. We also discuss some applications of this result in the context of quantum entanglement. We forge on the interpretation of pair creation in the Rindler spacetime with background electromagnetic fields of constant strengths. Our chief motivation is that the astrophysical black holes are often endowed with such background fields due to the accretion of plasma. The model considers here serves as a very simple toy model to address such a scenario.

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“…The reproduction of aspects of gravitational physics, both classical and quantum, by means of analogs is mainly based on condensed matter systems. Examples range from lasers [7][8][9][10][11] (see also the contribution [12] to this Issue) to water-waves [13], from Bose-Einstein condensates [2] to graphene [14][15][16][17][18][19][20][21][22][23][24] and more [1].…”

Section: Introductionmentioning

confidence: 99%

“…Some encouraging results come from femtosecond laser pulses that can produce an acceleration a 10 23 m/s 2 [10], with associated Unruh temperature T U ∼ 400K. On the other hand, the enormous accelerations (or decelerations) produced in relativistic heavy ion collisions, a 4.6 × 10 32 m/s 2 , have associated Unruh temperatures many orders of magnitude bigger, T U ∼ 1.85 × 10 12 K. A simple units conversion shows that this is nothing else than the hadronization temperature T h…”

Section: Introductionmentioning

confidence: 99%

Hunting Quantum Gravity with Analogs: the case of High Energy Particle Physics

Castorina¹,

Iorio²,

Satz³

2022

Preprint

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In this review we collect, for the first time in one paper, old and new results and future perspectives of the research line that uses hadron production, in high-energy scattering processes, to experimentally probe fundamental questions of quantum gravity. The key observations, that ignited the link between the two arenas, are the so-called "color-event horizon" of quantum chromodynamics, and the enormous (de)accelerations involved in such scattering processes: both phenomena point to the Unruh (and related Hawking) type of effects. After the first pioneering investigations of this, such research went on and on, including studies of the horizon entropy and other "black-hole thermodynamical" behaviors, which incidentally are also the frontier of the analog gravity research itself. It is stressed in various places here that the trait d'union between the two phenomenologies is that in both scenarios, hadron physics and black hole physics, "thermal" behaviors are more easily understood not as due to real thermalization processes (sometimes just impossible, given the small number of particles involved), but rather to a stochastic/quantum entanglement nature of such temperature. Finally, other aspects, such as the self-critical organizations of hadronic matter and of black-holes, have been recently investigated. The results of those investigations are also summarized and commented upon here. As a general remark, this research line shows that indeed we can probe quantum gravity theoretical constructions with analog systems that are not confined to belong only to the condensed matter arena. This is as it must be.

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Unruh effect and Schwinger pair creation under extreme acceleration by ultraintense lasers

Cited by 5 publications

References 14 publications

Astrophysics in Strong Electromagnetic Fields and Laboratory Astrophysics

Astrophysics in Strong Electromagnetic Fields and Laboratory Astrophysics

Schwinger effect and a uniformly accelerated observer

Hunting Quantum Gravity with Analogs: the case of High Energy Particle Physics

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