Evolution-free Hamiltonian parameter estimation through Zeeman markers

Daniel Burgarth, Ashok Ajoy

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

22 Dyfyniadau (Scopus)
219 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

We provide a protocol for Hamiltonian parameter estimation which relies only on the Zeeman effect. No time-dependent quantities need to be measured, it fully suffices to observe spectral shifts induced by fields applied to local ‘markers’. We demonstrate the idea with a simple tight-binding Hamiltonian and numerically show stability with respect to Gaussian noise on the spectral measurements. Then we generalize the result to show applicability to a wide range of systems, including quantum spin chains, networks of qubits, and coupled harmonic oscillators, and suggest potential experimental implementations.
Iaith wreiddiolSaesneg
Rhif yr erthygl030402
CyfnodolynPhysical Review Letters
Cyfrol119
Rhif cyhoeddi3
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 21 Gorff 2017

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