Spin-chain-based full quantum computation by accessing only two spins

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

doi:10.1063/1.3630173

Spin-chain-based full quantum computation by accessing only two spins

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

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

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
Pages (from-to)	169-172
Number of pages	4
Journal	AIP Conference Proceedings
Volume	1363
Issue number	1
DOIs	https://doi.org/10.1063/1.3630173
Publication status	Published - 2011
Externally published	Yes

Keywords

Quantum computing
spin chains
limited access

Access to Document

10.1063/1.3630173

Cite this

@article{4844b5dc42f84b1b97335f576554d864,

title = "Spin-chain-based full quantum computation by accessing only two spins",

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.",

keywords = "Quantum computing, spin chains, limited access",

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

year = "2011",

doi = "10.1063/1.3630173",

language = "English",

volume = "1363",

pages = "169--172",

journal = "AIP Conference Proceedings",

issn = "0094-243X",

publisher = "American Institute of Physics Publising LLC",

number = "1",

}

TY - JOUR

T1 - Spin-chain-based full quantum computation by accessing only two spins

AU - Maruyama, Koji

AU - Burgarth, Daniel

AU - Murphy, Michael

AU - Montangero, Simone

AU - Calarco, Tommaso

AU - Nori, Franco

AU - Plenio, Martin B.

PY - 2011

Y1 - 2011

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.

KW - Quantum computing

KW - spin chains

KW - limited access

UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000302005200036&KeyUID=WOS:000302005200036

U2 - 10.1063/1.3630173

DO - 10.1063/1.3630173

M3 - Article

SN - 0094-243X

VL - 1363

SP - 169

EP - 172

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

IS - 1

ER -

Spin-chain-based full quantum computation by accessing only two spins

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this