| Autor: |
Betz T; Vienna Center for Quantum Science and Technology, Atominstitut, TU-Wien, 1020 Vienna, Austria., Manz S, Bücker R, Berrada T, Koller Ch, Kazakov G, Mazets IE, Stimming HP, Perrin A, Schumm T, Schmiedmayer J |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2011 Jan 14; Vol. 106 (2), pp. 020407. Date of Electronic Publication: 2011 Jan 14. |
| DOI: |
10.1103/PhysRevLett.106.020407 |
| Abstrakt: |
We realize a one-dimensional Josephson junction using quantum degenerate Bose gases in a tunable double well potential on an atom chip. Matter wave interferometry gives direct access to the relative phase field, which reflects the interplay of thermally driven fluctuations and phase locking due to tunneling. The thermal equilibrium state is characterized by probing the full statistical distribution function of the two-point phase correlation. Comparison to a stochastic model allows us to measure the coupling strength and temperature and hence a full characterization of the system. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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