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Noise Thermometry with Two Weakly Coupled Bose-Einstein Condensates
Open accessAbstract
Here we report on the experimental investigation of thermally induced fluctuations of the relative phase between two Bose-Einstein condensates which are coupled via tunneling. The experimental control over the coupling strength and the temperature of the thermal background allows for the quantitative analysis of the phase fluctuations. Furthermore, we demonstrate the application of these measurements for thermometry in a regime where standard methods fail. With this we confirm that the heat capacity of an ideal Bose gas deviates from that of a classical gas as predicted by the third law of thermodynamics.
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Cited by
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Lewenstein, M., Sanpera, A., Ahufinger, V., Damski, B., Sen(De), A., & Sen, U. (2007) · Advances in Physics · doi:10.1080/00018730701223200 · Cited by 2,104
Integrated Mach–Zehnder interferometer for Bose–Einstein condensates
Berrada, T., van Frank, S., Bücker, R., Schumm, T., Schaff, J.-F., & Schmiedmayer, J. (2013) · Nature Communications · doi:10.1038/ncomms3077 · Cited by 276
Optical realization of the two-site Bose–Hubbard model in waveguide lattices
Longhi, S. (2011) · Journal of Physics B: Atomic, Molecular and Optical Physics · doi:10.1088/0953-4075/44/5/051001 · Cited by 40
Metadata
- Authors
- Gati, R., Hemmerling, B., Fölling, J., Albiez, M., & Oberthaler, M. K.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2006-04-06
- Volume
- 96
- Issue
- 13
- Pages
- 130404-130404
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2062087684
- Cited by
- 185
- References
- 0
- FWCI
- 12.89
- Type
- journal article
- Language
- en
- Open access
- green
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- Gati, R., Hemmerling, B., Fölling, J., Albiez, M., & Oberthaler, M. K. (2006). Noise Thermometry with Two Weakly Coupled Bose-Einstein Condensates. Physical Review Letters. https://doi.org/10.1103/physrevlett.96.130404
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