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Title: Composite boson signature in the interference pattern of atomic dimer condensates

Abstract

We predict the existence of high frequency modes in the interference pattern of two condensates made of fermionic-atom dimers. These modes, which result from fermion exchanges between condensates, constitute a striking signature of the dimer composite nature. From the 2-coboson spatial correlation function, that we derive analytically, and the Shiva diagrams that visualize many-body effects specific to composite bosons, we identify the physical origin of these high frequency modes and determine the conditions to see them experimentally by using bound fermionic-atom pairs trapped on optical lattice sites. The dimer granularity which appears in these modes comes from Pauli blocking that prevents two dimers to be located at the same lattice site.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3]
  1. National Center for Theoretical Sciences, Hsinchu (Taiwan)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); IKERBASQUE, San Sebastian (Spain)
  3. Sorbonne Univ., Paris (France)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1525857
Report Number(s):
LA-UR-19-22025
Journal ID: ISSN 1367-2630
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Volume: 21; Journal Issue: 4; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; BEC; interference pattern; composite boson; atomic dimer; optical lattice

Citation Formats

Shiau, Shiue -Yuan, Chenu, Aurélia, and Combescot, Monique. Composite boson signature in the interference pattern of atomic dimer condensates. United States: N. p., 2019. Web. doi:10.1088/1367-2630/ab0cc6.
Shiau, Shiue -Yuan, Chenu, Aurélia, & Combescot, Monique. Composite boson signature in the interference pattern of atomic dimer condensates. United States. doi:10.1088/1367-2630/ab0cc6.
Shiau, Shiue -Yuan, Chenu, Aurélia, and Combescot, Monique. Tue . "Composite boson signature in the interference pattern of atomic dimer condensates". United States. doi:10.1088/1367-2630/ab0cc6. https://www.osti.gov/servlets/purl/1525857.
@article{osti_1525857,
title = {Composite boson signature in the interference pattern of atomic dimer condensates},
author = {Shiau, Shiue -Yuan and Chenu, Aurélia and Combescot, Monique},
abstractNote = {We predict the existence of high frequency modes in the interference pattern of two condensates made of fermionic-atom dimers. These modes, which result from fermion exchanges between condensates, constitute a striking signature of the dimer composite nature. From the 2-coboson spatial correlation function, that we derive analytically, and the Shiva diagrams that visualize many-body effects specific to composite bosons, we identify the physical origin of these high frequency modes and determine the conditions to see them experimentally by using bound fermionic-atom pairs trapped on optical lattice sites. The dimer granularity which appears in these modes comes from Pauli blocking that prevents two dimers to be located at the same lattice site.},
doi = {10.1088/1367-2630/ab0cc6},
journal = {New Journal of Physics},
number = 4,
volume = 21,
place = {United States},
year = {2019},
month = {4}
}

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Cited by: 2 works
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