Scalable quantum computation via local control of only two qubits

Daniel BURGARTH; Koji Maruyama; 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 Maruyama, Michael Murphy, Simone Montangero, Tommaso Calarco, Franco Nori, Martin B. Plenio

Research output: Contribution to journal › Article › peer-review

82 Citations (Scopus)

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.

Original language	English
Article number	040303(R)
Pages (from-to)	040303-1-040303-4
Number of pages	4
Journal	Physical Review A
Volume	81
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.81.040303
Publication status	Published - 2010
Externally published	Yes

Access to Document

10.1103/PhysRevA.81.040303

Cite this

@article{3e2cd13cd08541e3aab1f32abf9d3e49,

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 Maruyama and Michael Murphy and Simone Montangero and Tommaso Calarco and Franco Nori and Plenio, {Martin B.}",

year = "2010",

doi = "10.1103/PhysRevA.81.040303",

language = "English",

volume = "81",

pages = "040303--1--040303--4",

journal = "Physical Review A",

issn = "2469-9926",

publisher = "American Physical Society",

number = "4",

}

TY - JOUR

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

AU - BURGARTH, Daniel

AU - Maruyama, Koji

AU - Murphy, Michael

AU - Montangero, Simone

AU - Calarco, Tommaso

AU - Nori, Franco

AU - Plenio, Martin B.

PY - 2010

Y1 - 2010

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.

UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000277227300006&KeyUID=WOS:000277227300006

U2 - 10.1103/PhysRevA.81.040303

DO - 10.1103/PhysRevA.81.040303

M3 - Article

SN - 2469-9926

VL - 81

SP - 040303-1-040303-4

JO - Physical Review A

JF - Physical Review A

IS - 4

M1 - 040303(R)

ER -

Scalable quantum computation via local control of only two qubits

Abstract

Access to Document

Other files and links

Fingerprint

Cite this