Robust quantum storage and retrieval in a hybrid system by controllable Stark-chirped rapid adiabatic passages

Yu, Lian; Feng, Junsheng; Dong, Peng; Li, Da-Chuang; Cao, Zhuo‐Liang

doi:10.1007/s11128-015-1048-3

Cited by 6 publications

(3 citation statements)

References 44 publications

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“…According to Eqs. ( 8) and (10), by taking k 1 = k 2 = 0, our scheme will degenerate to the direct memory scheme when J CM = J MU . To simplify the comparison, we take times of two steps to be…”

Section: A Comparison With the Direct Memory Schemementioning

confidence: 99%

“…Correspondingly, quantum data buses based on processors and memory units have also been proposed for constructing quantum information processing systems. [9][10][11] Sending and receiving quantum states can be conducted asynchronously with the help of memory units, which makes it possible to realize complex quantum algorithms that require many computing units and long processing times. [12,13] There are various quantum memory schemes proposed based on different physical effects, [14][15][16] storage materials, [17][18][19] and system structures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A high-fidelity memory scheme for quantum data buses

et al. 2017

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A novel quantum memory scheme is proposed for quantum data buses in scalable quantum computers by using adjustable interaction. Our investigation focuses on a hybrid quantum system including coupled flux qubits and a nitrogenvacancy center ensemble. In our scheme, the transmission and storage (retrieval) of quantum state are performed in two separated steps, which can be controlled by adjusting the coupling strength between the computing unit and the quantum memory. The scheme can be used not only to reduce the time of quantum state transmission, but also to increase the robustness of the system with respect to detuning caused by magnetic noises. In comparison with the previous memory scheme, about 80% of the transmission time is saved. Moreover, it is exemplified that in our scheme the fidelity could achieve 0.99 even when there exists detuning, while the one in the previous scheme is 0.75.

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Section: A Comparison With the Direct Memory Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A high-fidelity memory scheme for quantum data buses

et al. 2017

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show abstract

“…Superconducting artificial atoms are easily affected by noisy environments, which make the system coherence relatively delicate [21][22][23]. To obtain robust quantum operations, besides improving the coherence of circuit systems [24][25][26], reducing the noise effects via optimal controls is an alternative approach to quantum operations [27][28][29]. As one of the effective methods, fast quantum manipulations in shorter times can make the considered systems less affected by decoherence effects [30,31].…”

Section: Introductionmentioning

confidence: 99%

Fast-generating entanglement state between a transmon qubit and cavity photons via resonant driving

Shao¹,

Yan²,

Feng³

et al. 2019

Laser Phys.

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Fast generation of entanglement states is of critical importance for robust quantum information processing. In this paper, we propose an efficient protocol for a rapidly generating entanglement state between a transmon qubit and microwave photons. The transmon system is coupled to a classical microwave driving and a quantized cavity mode. With the adjustable classical driving, we consider the entanglement creation by transferring the composite states via resonant driving. Compared with the non-resonant cases, the present operation can be accomplished in a shorter time, which thus contributes to mitigating the decoherence effects. Moreover, many transmons inside a common cavity field could be addressed in a scalable way. The proposed strategy could offer a promising approach to optimally prepare entanglement states with superconducting quantum systems.

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Rapid generation of a three-dimensional entangled state for two atoms trapped in a cavity via shortcuts to adiabatic passage

Yang

Chen

et al. 2016

Quantum Inf Process

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An experimentally feasible scheme is proposed for rapidly generating twoatom three-dimensional (3D) entanglement with one step. As one technique of shortcuts to adiabaticity, transitionless quantum driving is applied to speed up the adiabatic generation of two-atom 3D entanglement. Apart from the rapid rate, the scheme has much higher experimental feasibility than the recent research (Quant.Inf. Process. ). Besides, numerical simulations indicate the scheme has strong robustness against parameter deviations and decoherence.

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Robust quantum storage and retrieval in a hybrid system by controllable Stark-chirped rapid adiabatic passages

Cited by 6 publications

References 44 publications

A high-fidelity memory scheme for quantum data buses

A high-fidelity memory scheme for quantum data buses

Fast-generating entanglement state between a transmon qubit and cavity photons via resonant driving

Rapid generation of a three-dimensional entangled state for two atoms trapped in a cavity via shortcuts to adiabatic passage

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