Probing superfluidity of periodically trapped ultracold atoms in a cavity by transmission spectroscopy

• Authors: Aranya Bhattacherjee , Tarun Kumar , Man Mohan
• Languages of publication: EN

Abstracts

EN

We study a system of periodic Bose-condensed atoms coupled to cavity photons using the input-output formalism of [14]. We show for the first time that the cavity will either act as a through-pass Lorentzian filter when the superfluid fraction of the condensate is minimum, or completely reflect the input field when the superfluid fraction is maximum. We show that by monitoring the ratio between the transmitted field and the reflected field, one can estimate the superfluid fraction.

Keywords

EN

Bose-Einstein condensate; cavity; optical lattice

• Journal: Open Physics
• Year: 2010
• Volume: 8
• Issue: 5
• Pages: 850-853

Dates

published

1 - 10 - 2010

online

22 - 7 - 2010

Contributors

author

Aranya Bhattacherjee,

author

Tarun Kumar

• Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India

author

Man Mohan

• Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India

References

• [1] B. Nagorny, Tn. Elsässer, A. Hemmerich, Phys. Rev. Lett. 91, 153003 (2003) http://dx.doi.org/10.1103/PhysRevLett.91.153003[Crossref]
• [2] J. A. Sauer, K. M. Fortier, M. S. Chang, C. D. Hamley, M. S. Chapman, Phys. Rev. A69, 051804(R) (2004)
• [3] A. Öttl, S. Ritter, M. Köhl, T. Esslinger, Phys. Rev. Lett. 95, 090404 (2005) http://dx.doi.org/10.1103/PhysRevLett.95.090404[Crossref]
• [4] P. Horak, S. M. Barnett, H. Ritsch, Phys. Rev. A 61, 033609 (2000) http://dx.doi.org/10.1103/PhysRevA.61.033609[Crossref]
• [5] P. Horak, H. Ritsch, Phys. Rev. A63, 023603 (2001)
• [6] A. Griessner, D. Jaksch, P. Zoller, J. Phys. B37, 1419 (2004)
• [7] C. Maschler, H. Ritsch, Opt. Commun. 243, 145 (2004) http://dx.doi.org/10.1016/j.optcom.2004.10.038[Crossref]
• [8] C. Maschler, H. Ritsch, Phys. Rev. Lett. 95, 260401 (2005) http://dx.doi.org/10.1103/PhysRevLett.95.260401[Crossref]
• [9] W. Chen, D. Meiser, P. Meystre, Phys. Rev. A 75, 023812 (2007) http://dx.doi.org/10.1103/PhysRevA.75.023812[Crossref]
• [10] A. B. Bhattacherjee, Opt. Commun. 281, 3004 (2008) http://dx.doi.org/10.1016/j.optcom.2008.01.039[Crossref]
• [11] I. B. Mekhov, C. Maschler, H. Ritsch, Nat. Phys. 3, 319 (2007) http://dx.doi.org/10.1038/nphys571[Crossref]
• [12] I. B. Mekhov, C. Maschler, H. Ritsch, Phys. Rev. Lett. 98, 100402 (2007) http://dx.doi.org/10.1103/PhysRevLett.98.100402[Crossref]
• [13] I. B. Mekhov, C. Maschler, H. Ritsch, Phys. Rev. A76, 053618 (2007)
• [14] M. J. Collett, C. W. Gardiner, Phys. Rev. A 30, 1386 (1984) http://dx.doi.org/10.1103/PhysRevA.30.1386[Crossref]
• [15] J. Larson, et. al., Phys. Rev. Lett. 100, 050401 (2008) http://dx.doi.org/10.1103/PhysRevLett.100.050401[Crossref]
• [16] I. H. Deutsch, R. J. C. Spreeuw, S. L. Rolston, W. D. Phillips, Phys. Rev. A52, 1394 (1994)

Identifiers

DOI

10.2478/s11534-009-0158-x