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Resonant enhancement of particle emission from a parametrically driven condensate in a one-dimensional lattice

Cornell Affiliated Author(s)

Author

L.Q. Lai
Y.B. Yu
E.J. Mueller

Abstract

Motivated by recent experiments, we investigate particle emission from a Bose-Einstein condensate in a one-dimensional lattice, where the interaction strength is periodically modulated. The modulated interactions parametrically excite a collective mode, leading to density oscillations. These collective oscillations in turn drive particle emission. This multistep process amplifies the drive, producing larger particle jets. We find that the amplitude dependence of the emission rate has a characteristic threshold behavior, as seen in experiments. © 2022 American Physical Society.

Date Published

Journal

Physical Review A

Volume

106

Issue

3

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85138138668&doi=10.1103%2fPhysRevA.106.033302&partnerID=40&md5=7a88adeb5c079bd82b4375f78605bf42

DOI

10.1103/PhysRevA.106.033302

Group (Lab)

Erich Mueller Group

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