TY - JOUR
T1 - Controlling the uncontrollable
T2 - Quantum control of open-system dynamics
AU - Kallush, Shimshon
AU - Dann, Roie
AU - Kosloff, Ronnie
N1 - Publisher Copyright:
© 2022 The Authors.
PY - 2022/11
Y1 - 2022/11
N2 - Control of open quantum systems is essential for the realization of contemporary quantum science and technology. We demonstrate such control using a thermodynamically consistent framework, taking into account the fact that the drive can modify the system's interaction with the environment. Such an effect is incorporated within the dynamical equation, leading to control-dependent dissipation. This relation serves as the key element for open-system control. The control paradigm is displayed by analyzing entropy-changing state-to-state transformations, such as heating and cooling. The difficult task of controlling quantum gates is achieved for nonunitary reset maps with complete memory loss. In addition, we identify a mechanism for controlling unitary gates by actively removing entropy from the system to the environment. We demonstrate a universal set of single- and double-qubit unitary gates under dissipation.
AB - Control of open quantum systems is essential for the realization of contemporary quantum science and technology. We demonstrate such control using a thermodynamically consistent framework, taking into account the fact that the drive can modify the system's interaction with the environment. Such an effect is incorporated within the dynamical equation, leading to control-dependent dissipation. This relation serves as the key element for open-system control. The control paradigm is displayed by analyzing entropy-changing state-to-state transformations, such as heating and cooling. The difficult task of controlling quantum gates is achieved for nonunitary reset maps with complete memory loss. In addition, we identify a mechanism for controlling unitary gates by actively removing entropy from the system to the environment. We demonstrate a universal set of single- and double-qubit unitary gates under dissipation.
UR - http://www.scopus.com/inward/record.url?scp=85141202312&partnerID=8YFLogxK
U2 - 10.1126/sciadv.add0828
DO - 10.1126/sciadv.add0828
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C2 - 36322661
AN - SCOPUS:85141202312
SN - 2375-2548
VL - 8
JO - Science advances
JF - Science advances
IS - 44
M1 - add0828
ER -