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6CCVD Research

Multipurpose Quantum Simulator Based on a Hybrid Solid-State Quantum Device

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2019-04-02
JournalSymmetry
AuthorsTingting Yuan, Fang Zhou, Shengping Chen, Shao-Hua Xiang, Kehui Song
InstitutionsJishou University, Hunan Police Academy
Citations4

Abstract

Section titled ā€œAbstractā€

This paper proposes a scheme to enhance the fidelity of symmetric and asymmetric quantum cloning using a hybrid system based on nitrogen-vacancy (N-V) centers. By setting different initial states, the present scheme can implement optimal symmetric (asymmetric) universal (phase-covariant) quantum cloning, so that the copies with the assistance of a Current-biased Josephson junction (CBJJ) qubit and four transmission-line resonators (TLRs) can be obtained. The scheme consists of two stages: the first stage is the implementation of the conventional controlled-phase gate, and the second is the realization of different quantum cloning machines (QCM) by choosing a suitable evolution time. The results show that the probability of success for QCM of a copy of the equatorial state can reach 1. Furthermore, the | W 4 Ā± āŸ© entangled state can be generated in the process of the phase-covariant quantum anti-cloning. Finally, the decoherence effects caused by the N-V center qubits and CBJJ qubit are discussed.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 1982 - A single quantum cannot be cloned [Crossref]
  2. 1996 - Quantum copying: Beyond the no-cloning theorem [Crossref]
  3. 1998 - A probabilistic cloning machine for replicating two non-orthogonal states [Crossref]
  4. 2003 - Universal quantum cloning in cavity QED [Crossref]
  5. 2003 - Scheme for the implementation of a universal quantum cloning machine via cavity-assisted atomic collisions in cavity QED [Crossref]
  6. 2005 - Scheme for implementing quantum dense coding in cavity QED [Crossref]
  7. 2012 - Realization of a general quantum cloning machine via cavity-assisted interaction [Crossref]
  8. 2018 - Probabilistic quantum cloning of a subset of linearly dependent states [Crossref]
  9. 1998 - Optimal universal and state-dependent quantum cloning [Crossref]
  10. 2011 - Solid-state optimal phase-covariant quantum cloning machine [Crossref]

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