Scalable quantum computation via local control of only two qubits

Daniel Burgarth; Koji Maryuama; Michael Murphy; Simone Montangero; Tommaso Calarco; Franco Nori; Martin B. Plenio

doi:10.1103/PhysRevA.81.040303

Scalable quantum computation via local control of only two qubits

Daniel Burgarth
, Koji Maryuama
, Michael Murphy
, Simone Montangero
, Tommaso Calarco
, Franco Nori
, Martin B. Plenio

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Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid

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We apply quantum control techniques to a long spin chain by acting only on two qubits at one of its ends, thereby implementing universal quantum computation by a combination of quantum gates on these qubits and indirect swap operations across the chain. It is shown that the control sequences can be computed and implemented efficiently. We discuss the application of these ideas to physical systems such as superconducting qubits in which full control of long chains is challenging.

Iaith wreiddiol	Saesneg
Rhif yr erthygl	040303
Nifer y tudalennau	4
Cyfnodolyn	Physical Review A - Atomic, Molecular, and Optical Physics
Cyfrol	81
Rhif cyhoeddi	4
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1103/PhysRevA.81.040303
Statws	Cyhoeddwyd - 22 Ebr 2010

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10.1103/PhysRevA.81.040303

PhysRevA.81.040303.pdf

http://hdl.handle.net/2160/7595

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title = "Scalable quantum computation via local control of only two qubits",

abstract = "We apply quantum control techniques to a long spin chain by acting only on two qubits at one of its ends, thereby implementing universal quantum computation by a combination of quantum gates on these qubits and indirect swap operations across the chain. It is shown that the control sequences can be computed and implemented efficiently. We discuss the application of these ideas to physical systems such as superconducting qubits in which full control of long chains is challenging.",

author = "Daniel Burgarth and Koji Maryuama and Michael Murphy and Simone Montangero and Tommaso Calarco and Franco Nori and Plenio, \{Martin B.\}",

note = "D. Burgarth, K. Maruyama, M. Murphy, S. Montangero, T. Calarco, F. Nori and M. B. Plenio, Scalable quantum computation via local control of only two qubits, Phys. Rev. A 81, 040303(R) (2010).",

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T1 - Scalable quantum computation via local control of only two qubits

AU - Burgarth, Daniel

AU - Maryuama, Koji

AU - Murphy, Michael

AU - Montangero, Simone

AU - Calarco, Tommaso

AU - Nori, Franco

AU - Plenio, Martin B.

N1 - D. Burgarth, K. Maruyama, M. Murphy, S. Montangero, T. Calarco, F. Nori and M. B. Plenio, Scalable quantum computation via local control of only two qubits, Phys. Rev. A 81, 040303(R) (2010).

PY - 2010/4/22

Y1 - 2010/4/22

N2 - We apply quantum control techniques to a long spin chain by acting only on two qubits at one of its ends, thereby implementing universal quantum computation by a combination of quantum gates on these qubits and indirect swap operations across the chain. It is shown that the control sequences can be computed and implemented efficiently. We discuss the application of these ideas to physical systems such as superconducting qubits in which full control of long chains is challenging.

AB - We apply quantum control techniques to a long spin chain by acting only on two qubits at one of its ends, thereby implementing universal quantum computation by a combination of quantum gates on these qubits and indirect swap operations across the chain. It is shown that the control sequences can be computed and implemented efficiently. We discuss the application of these ideas to physical systems such as superconducting qubits in which full control of long chains is challenging.

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DO - 10.1103/PhysRevA.81.040303

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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

IS - 4

M1 - 040303

ER -

Scalable quantum computation via local control of only two qubits

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