Rights statement: ©2014 American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Momentum relaxation of a mobile impurity in a one-dimensional quantum gas
AU - Burovski, E.
AU - Cheianov, V.
AU - Gamayun, O.
AU - Lychkovskiy, O.
N1 - ©2014 American Physical Society
PY - 2014/4/14
Y1 - 2014/4/14
N2 - The motion of an impurity atom in a degenerate Tonks-Girardeau gas is investigated in the regime of weak impurity-host coupling. It is shown that given some initial momentum $p_0$ an impurity relaxes to a steady state with a non-vanishing average momentum $p_\infty.$ The function $p_\infty(p_0)$ is calculated explicitly in the limit of vanishing coupling constant. Further to this, an impurity driven by a weak constant force is shown to exhibit pronounced momentum oscillations in agreement with earlier theoretical predictions.
AB - The motion of an impurity atom in a degenerate Tonks-Girardeau gas is investigated in the regime of weak impurity-host coupling. It is shown that given some initial momentum $p_0$ an impurity relaxes to a steady state with a non-vanishing average momentum $p_\infty.$ The function $p_\infty(p_0)$ is calculated explicitly in the limit of vanishing coupling constant. Further to this, an impurity driven by a weak constant force is shown to exhibit pronounced momentum oscillations in agreement with earlier theoretical predictions.
KW - cond-mat.quant-gas
U2 - 10.1103/PhysRevA.89.041601
DO - 10.1103/PhysRevA.89.041601
M3 - Journal article
VL - 89
JO - Physical review a
JF - Physical review a
SN - 1050-2947
M1 - 041601
ER -