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Title: Heterodimer of two distinguishable atoms in a one-dimensional optical lattice

Abstract

Within the Bose-Hubbard model, we theoretically determine the stationary states of two distinguishable atoms in a one-dimensional optical lattice and compare with the case of two identical bosons. A heterodimer has odd-parity dissociated states that do not depend on the interactions between the atoms, and the lattice momenta of the two atomic species may have different averages even for a bound state of the dimer. We discuss methods to detect the dimer. The different distributions of the quasimomenta of the two species may be observed in suitable time-of-flight experiments. Also, an asymmetry in the lineshape as a function of the modulation frequency may reveal the presence of the odd-parity dissociated states when a heterodimer is dissociated by modulating the depth of the optical lattice.

Authors:
; ;  [1]
  1. Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046 (United States)
Publication Date:
OSTI Identifier:
22068758
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; ATOMS; BOSONS; BOUND STATE; DEPTH; DIMERS; DISTRIBUTION; HUBBARD MODEL; INTERACTIONS; MODULATION; ONE-DIMENSIONAL CALCULATIONS; PARITY; TIME-OF-FLIGHT METHOD

Citation Formats

Odong, Otim, Sanders, Jerome C., and Javanainen, Juha. Heterodimer of two distinguishable atoms in a one-dimensional optical lattice. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.033613.
Odong, Otim, Sanders, Jerome C., & Javanainen, Juha. Heterodimer of two distinguishable atoms in a one-dimensional optical lattice. United States. doi:10.1103/PHYSREVA.84.033613.
Odong, Otim, Sanders, Jerome C., and Javanainen, Juha. Thu . "Heterodimer of two distinguishable atoms in a one-dimensional optical lattice". United States. doi:10.1103/PHYSREVA.84.033613.
@article{osti_22068758,
title = {Heterodimer of two distinguishable atoms in a one-dimensional optical lattice},
author = {Odong, Otim and Sanders, Jerome C. and Javanainen, Juha},
abstractNote = {Within the Bose-Hubbard model, we theoretically determine the stationary states of two distinguishable atoms in a one-dimensional optical lattice and compare with the case of two identical bosons. A heterodimer has odd-parity dissociated states that do not depend on the interactions between the atoms, and the lattice momenta of the two atomic species may have different averages even for a bound state of the dimer. We discuss methods to detect the dimer. The different distributions of the quasimomenta of the two species may be observed in suitable time-of-flight experiments. Also, an asymmetry in the lineshape as a function of the modulation frequency may reveal the presence of the odd-parity dissociated states when a heterodimer is dissociated by modulating the depth of the optical lattice.},
doi = {10.1103/PHYSREVA.84.033613},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}