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Superradiance in Quantum Vacuum

IPFN, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
Quantum Rep. 2021, 3(1), 42-52; https://doi.org/10.3390/quantum3010003
Received: 13 November 2020 / Revised: 23 December 2020 / Accepted: 29 December 2020 / Published: 3 January 2021
(This article belongs to the Special Issue Exclusive Feature Papers of Quantum Reports)
A new process associated with the nonlinear optical properties of the electromagnetic quantum vacuum is described. It corresponds to the superradiant emission of photons, resulting from the interaction of an intense laser pulse with frequency ω0 with a counter-propagating high-harmonic signal with a spectrum of frequencies nω1, for n integer, in the absence of matter. Under certain conditions, photon emission from vacuum will be enhanced by the square of the number of intense spikes associated with the high-harmonic pulse. This occurs when the field created by the successive spikes is coherently emitted, as in typical superradiant processes involving atoms. Subradiant conditions, where the nonlinearity of quantum vacuum is entirely suppressed, can equally be defined. View Full-Text
Keywords: QED vacuum; superradiance; ultra-intense lasers; high-harmonics QED vacuum; superradiance; ultra-intense lasers; high-harmonics
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MDPI and ACS Style

Mendonça, J.T. Superradiance in Quantum Vacuum. Quantum Rep. 2021, 3, 42-52. https://doi.org/10.3390/quantum3010003

AMA Style

Mendonça JT. Superradiance in Quantum Vacuum. Quantum Reports. 2021; 3(1):42-52. https://doi.org/10.3390/quantum3010003

Chicago/Turabian Style

Mendonça, José T. 2021. "Superradiance in Quantum Vacuum" Quantum Reports 3, no. 1: 42-52. https://doi.org/10.3390/quantum3010003

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