Hamiltonian Tomography in an Access-Limited Setting without State Initialization

Carlo Di Franco, Mauro Paternostro, Myungshik Kim

Research output: Contribution to journalArticle

45 Citations (Scopus)
19 Downloads (Pure)

Abstract

We propose a scheme for the determination of the coupling parameters in a chain of interacting spins. This requires only time-resolved measurements over a single particle, simple data postprocessing and no state initialization or prior knowledge of the state of the chain. The protocol fits well into the context of quantum-dynamics characterization and is efficient even when the spin chain is affected by general dissipative and dephasing channels. We illustrate the performance of the scheme by analyzing explicit examples and discuss possible extensions.
Original languageEnglish
Article number187203
Pages (from-to)187203-1-187203-4
Number of pages4
JournalPhysical Review Letters
Volume102
Issue number18
DOIs
Publication statusPublished - 08 May 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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