Detecting paired and counterflow superfluidity via dipole oscillations

We suggest an experimentally feasible procedure to observe counterflow and paired superfluidity in ultracold atom systems. We study the time evolution of one-dimensional mixtures of bosonic atoms in an optical lattice following an abrupt displacement of an additional weak confining potential. We fin...

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Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2011-10, Vol.84 (4), Article 041609
Main Authors: Hu, Anzi, Mathey, L., Tiesinga, Eite, Danshita, Ippei, Williams, Carl J., Clark, Charles W.
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
ATOMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIPOLES
INTERACTIONS
ONE-DIMENSIONAL CALCULATIONS
OSCILLATIONS
POTENTIALS
TIME DEPENDENCE
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cited_by cdi_FETCH-LOGICAL-c341t-127a0ad37920acb6566ad594fd38d109302ffb88eea0832fb83d8f14aac41a4f3
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container_title Physical review. A, Atomic, molecular, and optical physics
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creator Hu, Anzi
Mathey, L.
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description We suggest an experimentally feasible procedure to observe counterflow and paired superfluidity in ultracold atom systems. We study the time evolution of one-dimensional mixtures of bosonic atoms in an optical lattice following an abrupt displacement of an additional weak confining potential. We find that the dynamic responses of the paired superfluid phase for attractive interspecies interactions and the counterflow superfluid phase for repulsive interactions are qualitatively distinct and reflect the quasi-long-range order that characterizes these phases. These findings suggest a clear experimental procedure for their detection, and give an intuitive insight into their dynamics.
doi_str_mv 10.1103/PhysRevA.84.041609
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subjects ATOMIC AND MOLECULAR PHYSICS
ATOMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIPOLES
INTERACTIONS
ONE-DIMENSIONAL CALCULATIONS
OSCILLATIONS
POTENTIALS
TIME DEPENDENCE
title Detecting paired and counterflow superfluidity via dipole oscillations
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