Dissipative quantum dynamics of bosonic atoms in a shallow 1D optical lattice

Ruostekoski, J. and Isella, L. (2005) Dissipative quantum dynamics of bosonic atoms in a shallow 1D optical lattice. Physical review letters, 95 (11). ISSN 1079-7114

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Abstract

We theoretically study the dipolar motion of bosonic atoms in a very shallow, strongly confined 1D optical lattice using the parameters of the recent experiment [C. D. Fertig et al., Phys. Rev. Lett. 94, 120403 (2005)]. We find that, due to momentum uncertainty, a small, but non-negligible, atom population occupies the unstable velocity region of the corresponding classical dynamics, resulting in the observed dissipative atom transport. This population is generated even in a static vapor, due to quantum fluctuations which are enhanced by the lattice and the confinement, and is not notably affected by the motion of atoms or finite temperature.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
123694
Deposited By:
Deposited On:
26 Feb 2018 10:08
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 11:12