Bypassing state initialization in Hamiltonian tomography on spin-chains
C. Di Franco, M. Paternostro, M. S. Kim
TL;DR
This paper discusses a Hamiltonian tomography scheme for spin-chains that eliminates the need for state initialization, advancing methods for indirectly probing quantum many-body system dynamics with limited control.
Contribution
It introduces a novel Hamiltonian tomography approach that bypasses the requirement for state initialization in spin-chain systems.
Findings
The method enables indirect information extraction without state preparation.
It is applicable to control-limited quantum protocols.
The approach broadens the toolkit for quantum system characterization.
Abstract
We provide an extensive discussion on a scheme for Hamiltonian tomography of a spin-chain model that does not require state initialization [Phys. Rev. Lett. 102, 187203 (2009)]. The method has spurred the attention of the physics community interested in indirect acquisition of information on the dynamics of quantum many-body systems and represents a genuine instance of a control-limited quantum protocol.
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