Coupling strength estimation for spin chains despite restricted access

Franco Nori, Koji Maruyama, Daniel Burgarth

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

90 Dyfyniadau(SciVal)
161 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

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 wreiddiolSaesneg
CyfnodolynPhysical Review A
Cyfrol79
Rhif cyhoeddi2
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 26 Medi 2011

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