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Quantum and classical phase-space dynamics of a free-electron laser

Carmesin, C. Moritz and Kling, Peter and Giese, Enno and Sauerbrey, Roland and Schleich, Wolfgang P. (2020) Quantum and classical phase-space dynamics of a free-electron laser. Physical Review Research, 2, 023027. American Physical Society. doi: 10.1103/PhysRevResearch.2.023027. ISSN 2643-1564.

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Official URL: https://doi.org/10.1103/PhysRevResearch.2.023027


In a quantum mechanical description of the free-electron laser (FEL), the electrons jump on discrete momentum ladders, while they follow continuous trajectories according to the classical description. In order to observe the transition from quantum to classical dynamics, it is not sufficient that many momentum levels are involved. Only if additionally the initial momentum spread of the electron beam is larger than the quantum mechanical recoil, caused by the emission and absorption of photons, the quantum dynamics in phase space resembles the classical one. Beyond these criteria, quantum signatures of averaged quantities like the FEL gain might be washed out.

Item URL in elib:https://elib.dlr.de/141384/
Document Type:Article
Title:Quantum and classical phase-space dynamics of a free-electron laser
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Carmesin, C. MoritzUniversität Ulmhttps://orcid.org/0000-0002-5290-6133
Kling, PeterUNSPECIFIEDhttps://orcid.org/0000-0002-6367-8973
Giese, EnnoUniversität Ulmhttps://orcid.org/0000-0002-1126-6352
Schleich, Wolfgang P.UNSPECIFIEDhttps://orcid.org/0000-0002-9693-8882
Date:10 April 2020
Journal or Publication Title:Physical Review Research
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:023027
Publisher:American Physical Society
Keywords:Freie-Elektronen-Laser, Quantenphysik, Phasenraum, Wigner-Funktion
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Ulm
Institutes and Institutions:Institute of Quantum Technologies
Deposited By: Kling, Peter
Deposited On:16 Mar 2021 21:48
Last Modified:19 Nov 2021 20:39

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