TY - JOUR
T1 - Shortcut to Equilibration of an Open Quantum System
AU - Dann, Roie
AU - Tobalina, Ander
AU - Kosloff, Ronnie
N1 - Publisher Copyright:
© 2019 American Physical Society.
PY - 2019/6/26
Y1 - 2019/6/26
N2 - We present a procedure to accelerate the relaxation of an open quantum system towards its equilibrium state. The control protocol, termed the shortcut to equilibration, is obtained by reverse-engineering the nonadiabatic master equation. This is a nonunitary control task aimed at rapidly changing the entropy of the system. Such a protocol serves as a shortcut to an abrupt change in the Hamiltonian, i.e., a quench. As an example, we study the thermalization of a particle in a harmonic well. We observe that for short protocols the accuracy improves by 3 orders of magnitude.
AB - We present a procedure to accelerate the relaxation of an open quantum system towards its equilibrium state. The control protocol, termed the shortcut to equilibration, is obtained by reverse-engineering the nonadiabatic master equation. This is a nonunitary control task aimed at rapidly changing the entropy of the system. Such a protocol serves as a shortcut to an abrupt change in the Hamiltonian, i.e., a quench. As an example, we study the thermalization of a particle in a harmonic well. We observe that for short protocols the accuracy improves by 3 orders of magnitude.
UR - http://www.scopus.com/inward/record.url?scp=85068604104&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.122.250402
DO - 10.1103/PhysRevLett.122.250402
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C2 - 31347905
AN - SCOPUS:85068604104
SN - 0031-9007
VL - 122
JO - Physical Review Letters
JF - Physical Review Letters
IS - 25
M1 - 250402
ER -