Quantum transducers: Integrating transmission lines and nanomechanical resonators via charge qubits

Journal Article · Wed Feb 15 00:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.73.022318· OSTI ID:20974534

Sun, C P ^[1]; Wei, L F ^[1]; Yuxi, Liu ^[2]; Nori, Franco ^[1]

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1. Frontier Research System, Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198 (Japan)
2. Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198 (Japan)

We propose a mechanism to interface a transmission line resonator (TLR) with a nanomechanical resonator (NAMR) by commonly coupling them to a charge qubit, a Cooper-pair box with a controllable gate voltage. Integrated in this quantum transducer or simple quantum network, the charge qubit plays the role of a controllable quantum node coherently exchanging quantum information between the TLR and NAMR. With such an interface, a quasiclassical state of the NAMR can be created by controlling a single-mode classical current in the TLR. Alternatively, a 'Cooper pair' coherent output through the transmission line can be driven by a single-mode classical oscillation of the NAMR.

• OSTI ID: 20974534
• Journal Information: Physical Review. A, Vol. 73, Issue 2; Other Information: DOI: 10.1103/PhysRevA.73.022318; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COOPER PAIRS
INFORMATION THEORY
INTERFACES
NANOSTRUCTURES
OSCILLATIONS
QUANTUM COMPUTERS
QUANTUM MECHANICS
QUBITS
RESONATORS
TRANSDUCERS