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  Sharpening accepted thermodynamic wisdom via quantum control: or cooling to an internal temperature of zero by external coherent control fields without spontaneous emission

Scully, M. O., Aharonov, Y., Kapale, K. T., Tannor, D. J., Süßmann, G., & Walther, H. (2002). Sharpening accepted thermodynamic wisdom via quantum control: or cooling to an internal temperature of zero by external coherent control fields without spontaneous emission. Journal of Modern Optics, 49(14-15 Sp. Iss. SI), 2297-2307. Retrieved from http://taddeo.ingentaselect.com/vl=1424047/cl=22/nw=1/rpsv/catchword/tandf/09500340/v49n14/s4/p2297.

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 Urheber:
Scully, Marlan O.1, 2, Autor           
Aharonov, Yakir, Autor
Kapale, Kishore T.1, Autor           
Tannor, David J., Autor
Süßmann, Georg1, Autor           
Walther, Herbert1, Autor           
Affiliations:
1Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society, ou_1445566              
2Laser Spectroscopy, Max Planck Institute of Quantum Optics, Max Planck Society, ou_1445568              

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 Zusammenfassung: Cooling of internal atomic and molecular states via optical pumping and laser cooling of the atomic velocity distribution, rely on spontaneous emission. The outstanding success of such examples, taken together with general arguments, has led to the widely held notion that radiative cooling requires spontaneous emission. We here show by specific examples and direct calculation, based primarily on breaking emission-absorption symmetry as in lasing without inversion, that cooling of internal states by external coherent control fields is possible. We also show that such coherent schemes allow us to practically reach absolute zero in a finite number of steps, in contrast to some statements of the third law of thermodynamics.

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Sprache(n): eng - English
 Datum: 2002-11
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: Expertenbegutachtung
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Titel: Journal of Modern Optics
  Alternativer Titel : J. Mod. Opt.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 49 (14-15 Sp. Iss. SI) Artikelnummer: - Start- / Endseite: 2297 - 2307 Identifikator: ISSN: 0950-0340