Floquet heating in interacting atomic gases with an oscillating force
Name
PhysRevA.100.033406.pdf
Description
Published version
Size
551.54 KB
Format
Unknown
Checksum (MD5)
6fc245e66faa3569b4b90b17266e0644
Author(s)
Li, Jun-Ru
Shteynas, Boris
Ketterle, Wolfgang
Date Issued
September 2019
Journal
Physical Review A
Publisher
American Physical Society (APS)
Version
Final published version
Abstract
© 2019 American Physical Society. We theoretically investigate the collisional heating of a cold atom system subjected to time-periodic forces. We show within the Floquet framework that this heating rate due to two-body collisions has a general semiclassical expression P ρσvcolE0, depending on the kinetic energy E0 associated with the shaking, particle number density ρ, elastic collision cross section σ, and an effective collisional velocity vcol determined by the dominant energy scale in the system. We further show that the collisional heating is suppressed by Pauli blocking in cold fermionic systems and by the modified density of states in systems in lower dimensions. Our results provide an exactly solvable example and reveal some general features of Floquet heating in interacting systems.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/physreva.100.033406
