Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
QUANTUM COMPUTER WITH ATOMIC LOGICAL QUBITS ENCODED ON MACROSCOPIC THREE-LEVEL SYSTEMS IN COMMON QUANTUM ELECTRODYNAMIC CAVITY
Form of presentationArticles in international journals and collections
Year of publication2013
Языканглийский
  • Ablaev Farid Mansurovich, author
  • Andrianov Sergey Nikolaevich, author
  • Vasilev Aleksandr Valerevich, author
  • Moiseev Sergey Andreevich, author
  • Bibliographic description in the original language Ablayev, F.M. Quantum computer with atomic logical qubits encoded on macroscopic three-level systems in common quantum electrodynamic cavity / F. M. Ablayev, S. N. Andrianov, S. A. Moiseev, A. V. Vasiliev // Lobachevskii Journal of Mathematics. - 2013. - Vol. 34. - No. 4. - P. 291–303.
    Annotation We propose an effective realization of the universal set of elementary quantum gates in solid state quantum computer based on macroscopic (or mesoscopic) resonance systems - multi-atomic coherent ensembles, squids or quantum dots in quantum electrodynamic cavity. We exploit an encoding of logical qubits by the pairs of the macroscopic two- or three-level atoms that is working in a Hilbert subspace of all states inherent to these atomic systems. In this subspace, logical single qubit gates are realized by the controlled reversible transfer of single atomic excitation in the pair via the exchange of virtual photons and by the frequency shift of one of the atomic ensembles in a pair. In the case of two-level systems, the logical two - qubit gates are performed by the controlling of Lamb shift magnitude in one atomic ensemble, allowing/blocking the excitation transfer in a pair, respectively, that is controlled by the third atomic system of another pair. When using three-level systems, we
    Keywords quantum computer, atomic logical qubits
    The name of the journal Lobachevskii Journal of Mathematics
    URL http://arxiv.org/abs/1301.2201
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=55531&p_lang=2
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