Indirect control of quantum system via accessor: pure coherent control without system excitation

Details Indirect control of quantum system via accessor: pure coherent control without system excitation Indirect control of quantum system via accessor: pure coherent control without system excitation

2008-07-09

arxiv.org/abs/0807.1384v2

J. Phys. A: Math. Theor. 42 (2009) 045303

Physics

Quantum Physics

12 pages, no figure. J.Phys.A. 41(2008) in press

Scientific paper

A pure indirect control of quantum systems via quantum accessor is investigated. In this control scheme, we do not apply any external classical excitation fields on the controlled system and we control a quantum system via a quantum accessor and classical control fields control the accessor only. Complete controllability is investigated for arbitrary finite dimensional quantum systems and exemplified by 2 and 3 dimensional systems. The scheme exhibits some advantages; it uses less qubits in accessor and does not depend on the energy-level structure of the controlled system.

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