Interferometry with non-classical motional states of a Bose-Einstein condensate

Autor:	van Frank, Sandrine, Negretti, Antonio, Berrada, Tarik, Bücker, Robert, Montangero, Simone, Schaff, Jean-François, Schumm, Thorsten, Calarco, Tommaso, Schmiedmayer, Jörg
Rok vydání:	2014
Předmět:	Quantum Physics Condensed Matter - Quantum Gases
Zdroj:	Nature Communications 5, 4009 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1038/ncomms5009
Popis:	We demonstrate a two-pulse Ramsey-type interferometer for non-classical motional states of a Bose-Einstein condensate in an anharmonic trap. The control pulses used to manipulate the condensate wavefunction are obtained from Optimal Control Theory and directly optimised to maximise the interferometric contrast. They permit a fast manipulation of the atomic ensemble compared to the intrinsic decay and many-body dephasing effects, and thus to reach an interferometric contrast of 92% in the experimental implementation. Comment: 7 pages (including Supplementary Information), 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1402.0377 Zobrazit plný text záznamu View this record from Arxiv