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Transduction of qua...
Transduction of quantum information from charge qubit to nanomechanical cat-state
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- Radić, D. (författare)
- Sveučilište u Zagrebu,University of Zagreb
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- Gorelik, Leonid, 1952 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Kulinich, S.I. (författare)
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- Shekhter, Robert I., 1947 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Physica B: Condensed Matter. - 0921-4526 .- 1873-2135. ; 665
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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https://gup.ub.gu.se...
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Abstract
Ämnesord
Stäng
- We suggest a nanoelectromechanical setup and corresponding time-protocol of its manipulation by which we transduce quantum information from charge qubit to nanomechanical cat-state. The setup is based on the AC Josephson effect between bulk superconductors and mechanically vibrating mesoscopic superconducting island in the regime of the Cooper pair box. Starting with a pure state with quantum information initially encoded into superposition of the Cooper pair box states, applying a specially tailored time-protocol upon bias voltage and gate electrodes, we obtain a new pure state with information finally encoded into superposition of nanomechanical coherent states constituting the cat-state. This performance is achieved using quantum entanglement between electrical and mechanical states. Nanomechanical cat-states serve as a “storage” of quantum information, motivated by significantly longer decoherence time with respect to the charge qubit states, from which the information can be transdued back to the charge qubit applying the reverse time-protocol.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Nanomechanical cat-states
- Superconducting nanomechanics
- Transduction of quantum information
- Cooper pair box qubit
- Nanoelectromechanical systems
- AC Josephson effect
- Nanoelectromechanical systems
- Cooper pair box qubit
- Nanomechanical cat-states
- Transduction of quantum information
- Superconducting nanomechanics
- AC Josephson effect
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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