TY - JOUR

T1 - Nonequilibrium quantum dynamics of atomic dark solitons

AU - Martin, A.D.

AU - Ruostekoski, J.

PY - 2010/5/28

Y1 - 2010/5/28

N2 - We study quantum dynamics of bosonic atoms that are excited to form a phase kink, or several kinks, by an imprinting potential in a one-dimensional trap. We calculate dissipation due to quantum and thermal fluctuations in soliton trajectories, collisions and the core structure. Single-shot runs show weak filling of a soliton core, typically deeper solitons in the case of stronger fluctuations and spreading/disappearing solitons due to collisions. We also analyze a soliton system in an optical lattice that shows especially strong fluctuation-induced phenomena.

AB - We study quantum dynamics of bosonic atoms that are excited to form a phase kink, or several kinks, by an imprinting potential in a one-dimensional trap. We calculate dissipation due to quantum and thermal fluctuations in soliton trajectories, collisions and the core structure. Single-shot runs show weak filling of a soliton core, typically deeper solitons in the case of stronger fluctuations and spreading/disappearing solitons due to collisions. We also analyze a soliton system in an optical lattice that shows especially strong fluctuation-induced phenomena.

U2 - 10.1088/1367-2630/12/5/055018

DO - 10.1088/1367-2630/12/5/055018

M3 - Journal article

VL - 12

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

M1 - 055018

ER -