A quantum computer in the scheme of an atomic quantum transistor with logical encoding of qubits

Моисеев, С. А.; Andrianov, S. N.; Moiseev, E. S.

doi:10.1134/s0030400x13090166

Cited by 17 publications

(12 citation statements)

References 38 publications

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“…Multresonator system with atoms and controlled coupling between resonators seems useful as efficient tool for entanglement generators, quantum memory, interface [21,26] and it can also be applicable for construction photon-photon multi-qubit gates [31,32]. In this work, we show that combining the system of high-Q resonators with atoms (quantum dots, NV-centers or long-lived spin systems) situated in these resonators could be a realible approach to obtain full-fledged quantum platform for quantum computation with different type of logical qubits.…”

Section: Introductionmentioning

confidence: 99%

Programmable quantum motherboard for logical qubits

Perminov¹,

Tarankova²,

Моисеев³

2019

Laser Phys.

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We propose a scheme of a programmable quantum motherboard based on the system of three interacting high-Q resonators coupled with two-level atoms. By using the algebraic methods, we found that the investigated atomic-resonator platform can possess an equidistant spectrum of the eigenfrequencies at which simple reversible dynamics of the single photon excitation becomes possible. It was shown that such multiresonator quantum motherboard scheme allows to achieve efficient and programmable quantum state transfer between distributed atoms and generate logical qubits and qutrits. The use of the studied circuit in quantum processing is proposed.

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Section: Introductionmentioning

confidence: 99%

Programmable quantum motherboard for logical qubits

Perminov¹,

Tarankova²,

Моисеев³

2019

Laser Phys.

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show abstract

Section: Introductionmentioning

confidence: 99%

“…However, recently a memory cell becomes considered not only as a "container" for a quantum signal, but also as a microchip (quantum transistor), which allows not only to preserve but also to manipulate with signals inside [37][38][39]. In that respect, we would like to examine the possibility of implementing such a memory cell to perform quantum calculations directly within the cell.…”

Section: Introductionmentioning

confidence: 99%

Preservation of quantum correlations in a femtosecond light pulse train within an atomic ensemble

et al. 2017

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In this paper, we examined a possibility of preservation of a substantially multimode radiation in a single cell of quantum memory. As a light source we considered a synchronously pumped optical parametric oscillator (SPOPO). As it was shown in [1][2][3][4], SPOPO radiation has a large number of the correlated modes making it attractive for the purposes of the quantum communication and computing. We showed that these correlations can be mapped on the longitudinal spin waves of the memory cell and be restored later in the readout light. The efficiencies of the writing and readout depend on the mode structure of the memory determined by a mechanism of the lightmatter interaction under consideration (the non-resonance Raman interaction) and by the profile of the driving light field. We showed that like the initial light pulse train, the restored one can be represented by a set of squeezed supermodes. The mapping of the quantum multimode correlations on the material medium offers opportunities to manipulate the quantum states within the memory cell followed by the reading of the transformed state.

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“…They provide an effective control of a qubit state. There is an idea of quantum states swaping between two separated atomic ensembles via a single atom playing the role of controllable gate [13].…”

Section: Introductionmentioning

confidence: 99%

Manipulation of quantum states in memory cell: controllable Mach-Zehnder interferometer

Losev,

Golubeva,

Golubev

2016

Preprint

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In this article, we consider the possibility of manipulation of quantum signals, ensured by the use of the tripod-type atomic memory cell. We show that depending on a configuration of driving fields at the writing and reading, such a cell allows both to store and transform the signal. It is possible to provide the operation of the memory cell in a Mach-Zehnder interferometer mode passing two successive pulses at the input. We proposed a procedure of partial signal read out that provides entanglement between the retrieved light and the atomic ensemble. Thus, we have shown that tripod atomic cell is a promising candidate to implement of quantum logical operations, including two-qubit ones, that can be performed on the basis of only one cell.

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A quantum computer in the scheme of an atomic quantum transistor with logical encoding of qubits

Cited by 17 publications

References 38 publications

Programmable quantum motherboard for logical qubits

Programmable quantum motherboard for logical qubits

Preservation of quantum correlations in a femtosecond light pulse train within an atomic ensemble

Manipulation of quantum states in memory cell: controllable Mach-Zehnder interferometer

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