Nanomechanical resonator coupling with a double quantum dot: quantum state engineering

J.-Q. Liao and L.-M. Kuang ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2008, vol. 63, issue 1, 79-83

Abstract: We propose a theoretical scheme to realize quantum state engineering of a nanomechanical resonator (NAMR) through the coupling between the NAMR and a double quantum dot (DQD). Hybrid entangled states between the NAMR and the DQD and superposed coherent states of the NAMR are created explicitly. It is shown that quantum state tomography for the NAMR can be implemented through carrying out unitary operations on the NAMR and the DQD. It is indicated that the scheme is feasible at the reach of the present technology. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Keywords: 42.50.Dv Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements, 85.85.+j Micro- and nano-electromechanical systems (MEMS/NEMS) and devices, 73.21.La Quantum dots, (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1140/epjb/e2008-00213-y

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