Phonon-Josephson resonances in atomtronic circuits

被引：10

作者：

Bidasyuk, Y. M. ^{[1
]}

Prikhodko, O. O. ^{[2
]}

Weyrauch, M. ^{[1
]}

机构：

[1] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany

[2] Taras Shevchenko Natl Univ Kyiv, Dept Phys, Volodymyrska St 64-13, UA-01601 Kiev, Ukraine

来源：

PHYSICAL REVIEW A | 2016年 / 94卷 / 03期

关键词：

BOSE-EINSTEIN CONDENSATE; OSCILLATIONS; DYNAMICS; CURRENTS;

D O I：

10.1103/PhysRevA.94.033603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the resonant excitation of sound modes from Josephson oscillations in Bose-Einstein condensates. From the simulations for various setups using the Gross-Pitaevskii mean-field equations and Josephson equations we observe additional tunneling currents induced by resonant phonons. The proposed experiment may be used for spectroscopy of phonons as well as other low-energy collective excitations in Bose-Einstein condensates. We also argue that the observed effect may mask the observation of Shapiro resonances if not carefully controlled.

引用

页数：8

共 35 条

[1] Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates [J].

Abad, M. ;

Guilleumas, M. ;

Mayol, R. ;

Piazza, F. ;

Jezek, D. M. ;

Smerzi, A. .

EPL, 2015, 109 (04)

[2] Direct observation of tunneling and nonlinear self-trapping in a single bosonic Josephson junction -: art. no. 010402 [J].

Albiez, M ;

Gati, R ;

Fölling, J ;

Hunsmann, S ;

Cristiani, M ;

Oberthaler, MK .

PHYSICAL REVIEW LETTERS, 2005, 95 (01)

[3]

Barone A., 1982, Physics and Application of the Josephson Effect

[4] Development and metrological applications of Josephson arrays at PTB [J].

Behr, Ralf ;

Kieler, Oliver ;

Kohlmann, Johannes ;

Mueller, Franz ;

Palafox, Luis .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2012, 23 (12)

[5] Dynamics in asymmetric double-well condensates [J].

Cataldo, H. M. ;

Jezek, D. M. .

PHYSICAL REVIEW A, 2014, 90 (04)

[6]

Clarke J., 2004, The SQUID Handbook, V1

[7] JOSEPHSON AC AND STEP STRUCTURE IN SUPERCURRENT TUNNELING CHARACTERISTIC [J].

COON, DD ;

FISKE, MD .

PHYSICAL REVIEW, 1965, 138 (3A) :A744-&

[8] Critical rotation of an annular superfluid Bose-Einstein condensate [J].

Dubessy, R. ;

Liennard, T. ;

Pedri, P. ;

Perrin, H. .

PHYSICAL REVIEW A, 2012, 86 (01)

[9] Analog of photon-assisted tunneling in a Bose-Einstein condensate [J].

Eckardt, A ;

Jinasundera, T ;

Weiss, C ;

Holthaus, M .

PHYSICAL REVIEW LETTERS, 2005, 95 (20)

[10] Hysteresis in a quantized superfluid 'atomtronic' circuit [J].

Eckel, Stephen ;

Lee, Jeffrey G. ;

Jendrzejewski, Fred ;

Murray, Noel ;

Clark, Charles W. ;

Lobb, Christopher J. ;

Phillips, William D. ;

Edwards, Mark ;

Campbell, Gretchen K. .

NATURE, 2014, 506 (7487) :200-+

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