Accelerated stabilization of coherent photon states

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Accelerated stabilization of coherent photon states. / Ikonen, Joni; Möttönen, Mikko.

In: New Journal of Physics, Vol. 20, No. 10, 103047, 31.10.2018.

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@article{aaab8d1f6c6a41ecaeebe6341b631e7b,
title = "Accelerated stabilization of coherent photon states",
abstract = "Control and utilization of coherent states of microwave photons is a ubiquitous requirement for the present and near-future implementations of solid-state quantum computers. The rate at which the photon state responds to external driving is limited by the relaxation rate of the storage resonator, which poses a trade-off between fast control and long storage time. Here, we present a control scheme that is designed to drive an unknown photon state to a desired coherent state much faster than the resonator decay rate. Our method utilizes a tunable environment which acts on an ancillary qubit coupled to the resonator. By periodically resetting the qubit and tuning it into resonance with the resonator, possible photon loss and dephasing of the resonator mode are corrected without measurements or active feedback. In general, our method is suitable for accelerating the control of coherent states in high-fidelity resonators.",
keywords = "quantum control, tunable electromagnetic environments, quantum state preparation, dissipative quantum systems, circuit quantum electrodynamics",
author = "Joni Ikonen and Mikko M{\"o}tt{\"o}nen",
note = "| openaire: EC/H2020/681311/EU//QUESS",
year = "2018",
month = "10",
day = "31",
doi = "10.1088/1367-2630/aae621",
language = "English",
volume = "20",
journal = "New Journal of Physics",
issn = "1367-2630",
number = "10",

}

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TY - JOUR

T1 - Accelerated stabilization of coherent photon states

AU - Ikonen, Joni

AU - Möttönen, Mikko

N1 - | openaire: EC/H2020/681311/EU//QUESS

PY - 2018/10/31

Y1 - 2018/10/31

N2 - Control and utilization of coherent states of microwave photons is a ubiquitous requirement for the present and near-future implementations of solid-state quantum computers. The rate at which the photon state responds to external driving is limited by the relaxation rate of the storage resonator, which poses a trade-off between fast control and long storage time. Here, we present a control scheme that is designed to drive an unknown photon state to a desired coherent state much faster than the resonator decay rate. Our method utilizes a tunable environment which acts on an ancillary qubit coupled to the resonator. By periodically resetting the qubit and tuning it into resonance with the resonator, possible photon loss and dephasing of the resonator mode are corrected without measurements or active feedback. In general, our method is suitable for accelerating the control of coherent states in high-fidelity resonators.

AB - Control and utilization of coherent states of microwave photons is a ubiquitous requirement for the present and near-future implementations of solid-state quantum computers. The rate at which the photon state responds to external driving is limited by the relaxation rate of the storage resonator, which poses a trade-off between fast control and long storage time. Here, we present a control scheme that is designed to drive an unknown photon state to a desired coherent state much faster than the resonator decay rate. Our method utilizes a tunable environment which acts on an ancillary qubit coupled to the resonator. By periodically resetting the qubit and tuning it into resonance with the resonator, possible photon loss and dephasing of the resonator mode are corrected without measurements or active feedback. In general, our method is suitable for accelerating the control of coherent states in high-fidelity resonators.

KW - quantum control

KW - tunable electromagnetic environments

KW - quantum state preparation

KW - dissipative quantum systems

KW - circuit quantum electrodynamics

U2 - 10.1088/1367-2630/aae621

DO - 10.1088/1367-2630/aae621

M3 - Article

VL - 20

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

IS - 10

M1 - 103047

ER -

ID: 29583742