TY - JOUR
T1 - Long-lived states with well-defined spins in spin-1/2 homogeneous Bose gases
AU - Yurovsky, Vladimir A.
N1 - Publisher Copyright:
© 2016 American Physical Society.
PY - 2016/2/8
Y1 - 2016/2/8
N2 - Many-body eigenfunctions of the total spin operator can be constructed from the spin and spatial wave functions with nontrivial permutation symmetries. Spin-dependent interactions can lead to relaxation of the spin eigenstates to the thermal equilibrium. A mechanism that stabilizes the many-body entangled states is proposed here. Surprisingly, despite coupling with the chaotic motion of the spatial degrees of freedom, the spin relaxations can be suppressed by destructive quantum interference due to spherical vector and tensor terms of the spin-dependent interactions. Tuning the scattering lengths by the method of Feshbach resonances, readily available in cold atomic laboratories, can enhance the relaxation time scales by several orders of magnitude.
AB - Many-body eigenfunctions of the total spin operator can be constructed from the spin and spatial wave functions with nontrivial permutation symmetries. Spin-dependent interactions can lead to relaxation of the spin eigenstates to the thermal equilibrium. A mechanism that stabilizes the many-body entangled states is proposed here. Surprisingly, despite coupling with the chaotic motion of the spatial degrees of freedom, the spin relaxations can be suppressed by destructive quantum interference due to spherical vector and tensor terms of the spin-dependent interactions. Tuning the scattering lengths by the method of Feshbach resonances, readily available in cold atomic laboratories, can enhance the relaxation time scales by several orders of magnitude.
UR - http://www.scopus.com/inward/record.url?scp=84958012771&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.93.023613
DO - 10.1103/PhysRevA.93.023613
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84958012771
SN - 2469-9926
VL - 93
JO - Physical Review A
JF - Physical Review A
IS - 2
M1 - 023613
ER -