Quantum electromechanics: qubits from buckling nanobars
نویسندگان
چکیده
We propose a mechanical qubit based on buckling nanobars—a nano-electromechanical system so small as to be quantum coherent. To establish buckling nanobars as legitimate candidates for qubits, we calculate the effective buckling potential that produces the two-level system and identify the tunnel coupling between the two local states. We propose different designs of nanomechanical qubits and describe how they can be manipulated. Also we outline possible decoherence channels and detection schemes. A comparison between the well-studied charge and flux superconducting qubits suggests several experimental setups which could be realized using available technology. New Journal of Physics 8 (2006) 105 PII: S1367-2630(06)21022-X 1367-2630/06/010105+10$30.00 © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft 2 Institute of Physics DEUTSCHE PHYSIKALISCHE GESELLSCHAFT
منابع مشابه
Quantum electromechanics: Quantum tunneling near resonance and qubits from buckling nanoscale bars
Sergey Savel’ev,1,2 A. L. Rakhmanov,1,3 Xuedong Hu,1,4 A. Kasumov,5 and Franco Nori1,6 1Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan 2Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom 3Institute for Theoretical and Applied Electrodynamics RAS, 125412 Moscow, Russia 4Department of Physics...
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