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Title: Direct Lattice Shaking of Bose Condensates: Finite Momentum Superfluids

Abstract

Here, we address band engineering in the presence of periodic driving by numerically shaking a lattice containing a bosonic condensate. By not restricting to simplified band structure models we are able to address arbitrary values of the shaking frequency, amplitude, and interaction strengths g. For "near-resonant" shaking frequencies with moderate g, a quantum phase transition to a finite momentum superfluid is obtained with Kibble-Zurek scaling and quantitative agreement with experiment. We use this successful calibration as a platform to support a more general investigation of the interplay between (one particle) Floquet theory and the effects associated with arbitrary g. Band crossings lead to superfluid destabilization, but where this occurs depends on g in a complicated fashion.

Authors:
; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Materials Sciences and Engineering Division; National Science Foundation (NSF); USDOE
OSTI Identifier:
1374192
Alternate Identifier(s):
OSTI ID: 1361000
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 118; Journal Issue: 22; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Anderson, Brandon M., Clark, Logan W., and Crawford, J. Direct Lattice Shaking of Bose Condensates: Finite Momentum Superfluids. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.118.220401.
Anderson, Brandon M., Clark, Logan W., & Crawford, J. Direct Lattice Shaking of Bose Condensates: Finite Momentum Superfluids. United States. doi:10.1103/PhysRevLett.118.220401.
Anderson, Brandon M., Clark, Logan W., and Crawford, J. Wed . "Direct Lattice Shaking of Bose Condensates: Finite Momentum Superfluids". United States. doi:10.1103/PhysRevLett.118.220401. https://www.osti.gov/servlets/purl/1374192.
@article{osti_1374192,
title = {Direct Lattice Shaking of Bose Condensates: Finite Momentum Superfluids},
author = {Anderson, Brandon M. and Clark, Logan W. and Crawford, J},
abstractNote = {Here, we address band engineering in the presence of periodic driving by numerically shaking a lattice containing a bosonic condensate. By not restricting to simplified band structure models we are able to address arbitrary values of the shaking frequency, amplitude, and interaction strengths g. For "near-resonant" shaking frequencies with moderate g, a quantum phase transition to a finite momentum superfluid is obtained with Kibble-Zurek scaling and quantitative agreement with experiment. We use this successful calibration as a platform to support a more general investigation of the interplay between (one particle) Floquet theory and the effects associated with arbitrary g. Band crossings lead to superfluid destabilization, but where this occurs depends on g in a complicated fashion.},
doi = {10.1103/PhysRevLett.118.220401},
journal = {Physical Review Letters},
number = 22,
volume = 118,
place = {United States},
year = {Wed May 31 00:00:00 EDT 2017},
month = {Wed May 31 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
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