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Nanomechanical cat ...
Nanomechanical cat states generated by a dc voltage-driven Cooper pair box qubit
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- Radic, D. (författare)
- Sveučilište u Zagrebu,University of Zagreb
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- Choi, S. J. (författare)
- Institute for Basic Science - Korea (IBS),Julius-Maximilians Universität Würzburg,University of Würzburg,Korea Research Institute of Standards and Science (KRISS)
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- Park, H. C. (författare)
- Institute for Basic Science - Korea (IBS)
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Suh, J. (författare)
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- Shekhter, Robert I., 1947 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
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- Gorelik, Leonid, 1952 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2022-06-27
- 2022
- Engelska.
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Ingår i: npj Quantum Information. - : Springer Science and Business Media LLC. - 2056-6387. ; 8:1
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- We study a nanoelectromechanical system consisting of a Cooper pair box qubit performing nanomechanical vibrations between two bulk superconductors. We demonstrate that a bias voltage applied to the superconductors may generate states represented by entanglement between qubit states and quantum 'cat states', i.e. a superposition of the coherent states of the nanomechanical oscillator. We characterize the formation and development of such states in terms of the corresponding Wigner function and entropy of entanglement. Also, we propose an experimentally feasible detection scheme for the effect, in which the average current that attains the specific features created by the entanglement is measured.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- coulomb-blockade
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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