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Laser control of resonance tunneling via an exceptional point
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SYSNO ASEP 0533637 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Laser control of resonance tunneling via an exceptional point Author(s) Ben-Asher, A. (IL)
Šimsa, Daniel (FZU-D) ORCID
Uhlířová, Tereza (UFP-V)
Šindelka, Milan (UFP-V) ORCID
Moiseyev, N. (IL)Number of authors 5 Article number 253202 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 124, č. 25 (2020), s. 1-6Number of pages 6 s. Language eng - English Country US - United States Keywords resonance tunneling ; ight induced exceptional points (EPs) by laser contro Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) Subject RIV - cooperation Institute of Plasma Physics - Optics, Masers, Lasers R&D Projects GA20-21179S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 ; UFP-V - RVO:61389021 UT WOS 000542522800004 EID SCOPUS 85087690850 DOI 10.1103/PhysRevLett.124.253202 Annotation According to the familiar Breit-Wigner formula, tunneling through a potential barrier is strongly enhanced when the energy of the projectile is equal to the resonance energy. Here we show how a weak continuous wave laser can qualitatively change the character of resonance tunneling, and enforce a sudden and total suppression of the transmission by inducing an exceptional point (EP, special non-Hermitian degeneracy). Our findings are relevant not only for laser control of transmission in the resonance tunneling diodes, but also in the context of electron scattering through any type of metastable (e.g., autoionization, Auger, intermolecular Coulombic decay) atomic or molecular states, and even in the case of transmission of light or sound waves in active systems with gain and loss.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address https://doi.org/10.1103/PhysRevLett.124.253202
Number of the records: 1