Coupling strength estimation for spin chains despite restricted access

Franco Nori; Koji Maruyama; Daniel Burgarth

doi:10.1103/PhysRevA.79.020305

Coupling strength estimation for spin chains despite restricted access

Franco Nori, Koji Maruyama, Daniel Burgarth

Adran Ffiseg

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

101 Dyfyniadau (Scopus)

166 Wedi eu Llwytho i Lawr (Pure)

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Quantum control requires full knowledge of the system many-body Hamiltonian. In many cases this information is not directly available due to restricted access to the system. Here we show how to indirectly estimate all the coupling strengths in a spin chain by measuring one spin at the end of the chain. We also discuss the efficiency of this “quantum inverse problem” and give a numerical example.

Iaith wreiddiol	Saesneg
Cyfnodolyn	Physical Review A
Cyfrol	79
Rhif cyhoeddi	2
Dynodwyr Gwrthrych Digidol (DOIs)	https://doi.org/10.1103/PhysRevA.79.020305
Statws	Cyhoeddwyd - 26 Medi 2011

Mynediad at Ddogfen

10.1103/PhysRevA.79.020305

PhysRevA.79.020305.pdf

http://hdl.handle.net/2160/7594

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@article{222310bcfe584ffb9cac22206e48c9fe,

title = "Coupling strength estimation for spin chains despite restricted access",

abstract = "Quantum control requires full knowledge of the system many-body Hamiltonian. In many cases this information is not directly available due to restricted access to the system. Here we show how to indirectly estimate all the coupling strengths in a spin chain by measuring one spin at the end of the chain. We also discuss the efficiency of this “quantum inverse problem” and give a numerical example.",

author = "Franco Nori and Koji Maruyama and Daniel Burgarth",

note = "D. Burgarth, K. Maruyama and F. Nori, Coupling strength estimation for spin chains despite restricted access Phys. Rev. A 79, 020305(R) (2009).",

year = "2011",

month = sep,

day = "26",

doi = "10.1103/PhysRevA.79.020305",

language = "English",

volume = "79",

journal = "Physical Review A",

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AU - Nori, Franco

AU - Maruyama, Koji

AU - Burgarth, Daniel

N1 - D. Burgarth, K. Maruyama and F. Nori, Coupling strength estimation for spin chains despite restricted access Phys. Rev. A 79, 020305(R) (2009).

PY - 2011/9/26

Y1 - 2011/9/26

N2 - Quantum control requires full knowledge of the system many-body Hamiltonian. In many cases this information is not directly available due to restricted access to the system. Here we show how to indirectly estimate all the coupling strengths in a spin chain by measuring one spin at the end of the chain. We also discuss the efficiency of this “quantum inverse problem” and give a numerical example.

AB - Quantum control requires full knowledge of the system many-body Hamiltonian. In many cases this information is not directly available due to restricted access to the system. Here we show how to indirectly estimate all the coupling strengths in a spin chain by measuring one spin at the end of the chain. We also discuss the efficiency of this “quantum inverse problem” and give a numerical example.

U2 - 10.1103/PhysRevA.79.020305

DO - 10.1103/PhysRevA.79.020305

M3 - Article

SN - 1050-2947

VL - 79

JO - Physical Review A

JF - Physical Review A

IS - 2

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Coupling strength estimation for spin chains despite restricted access

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