Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki
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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2013, Volume 98, Issue 7, Pages 432–433
DOI: https://doi.org/10.7868/S0370274X13190041 (Mi jetpl3531) 		 
CONDENSED MATTER

Josephson effect in coherent roton aggregates

L. A. Melnikovsky

P. L. Kapitza Institute for Physical Problems, Russian Academy of Sciences
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DOI: https://doi.org/10.7868/S0370274X13190041
Abstract: A localized microwave electromagnetic field in liquid helium behaves as a laser of rotons: it produces a coherent roton aggregate. We show that the whispering gallery mode of the dielectric resonator excites multiple coherent aggregates simultaneously and predict a Josephson effect between them. The superfluid velocity around the resonator acts as a “voltage across the weak link” in superconducting Josephson junctions. Josephson frequency-velocity relation agrees with existing experimental data.
Received: 12.07.2013
Revised: 26.08.2013
English version:
Journal of Experimental and Theoretical Physics Letters, 2013, Volume 98, Issue 7, Pages 378–379
DOI: https://doi.org/10.1134/S0021364013200095
Bibliographic databases:
Document Type: Article
Language: English
Citation: L. A. Melnikovsky, “Josephson effect in coherent roton aggregates”, Pis'ma v Zh. Èksper. Teoret. Fiz., 98:7 (2013), 432–433; JETP Letters, 98:7 (2013), 378–379
Citation in format AMSBIB
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    		Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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