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Observation of Pair Condensation in the Quasi-2D BEC-BCS Crossover
Open accessAbstract
The condensation of fermion pairs lies at the heart of superfluidity. However, for strongly correlated systems with reduced dimensionality the mechanisms of pairing and condensation are still not fully understood. In our experiment we use ultracold atoms as a generic model system to study the phase transition from a normal to a condensed phase in a strongly interacting quasi-two-dimensional Fermi gas. Using a novel method, we obtain the in situ pair momentum distribution of the strongly interacting system and observe the emergence of a low-momentum condensate at low temperatures. By tuning temperature and interaction strength, we map out the phase diagram of the quasi-2D BEC-BCS crossover.
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Citations
Cites
Berezinskii–Kosterlitz–Thouless crossover in a trapped atomic gas
Hadzibabic, Z., Krüger, P., Cheneau, M., Battelier, B., & Dalibard, J. (2006) · Nature · doi:10.1038/nature04851 · Cited by 972
Cited by
The BCS–BEC crossover: From ultra-cold Fermi gases to nuclear systems
Strinati, G. C., Pieri, P., Röpke, G., Schuck, P., & Urban, M. (2018) · Physics Reports · doi:10.1016/j.physrep.2018.02.004 · Cited by 264
Metadata
- Authors
- Ries, M. G., Wenz, A. N., Zürn, G., Bayha, L., Boettcher, I., Kedar, D., Murthy, P. A., Neidig, M., Lompe, T., & Jochim, S.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2015-06-08
- Volume
- 114
- Issue
- 23
- Pages
- 230401-230401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1667828023
- Cited by
- 165
- References
- 1
- FWCI
- 13.76
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Observation of Pair Condensation in the Quasi-2D BEC-BCS Crossover. https://app.cochat.ai/papers/10.1103/physrevlett.114.230401
- The paper
- Ries, M. G., Wenz, A. N., Zürn, G., Bayha, L., Boettcher, I., Kedar, D., Murthy, P. A., Neidig, M., Lompe, T., & Jochim, S. (2015). Observation of Pair Condensation in the Quasi-2D BEC-BCS Crossover. Physical Review Letters. https://doi.org/10.1103/physrevlett.114.230401
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