(1) and Department of Physics, Human Normal University, Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Changsha, 410081, P.R. China
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.