Hybrid atom-photon quantum gate in a superconducting microwave resonator

J. D. Pritchard; J. A. Isaacs; M. A. Beck; R. McDermott; M. Saffman

doi:10.1103/PhysRevA.89.010301

Hybrid atom-photon quantum gate in a superconducting microwave resonator

J. D. Pritchard, J. A. Isaacs, M. A. Beck, R. McDermott, M. Saffman

Physics

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

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Abstract

We propose a hybrid quantum gate between an atom and a microwave photon in a superconducting coplanar waveguide cavity by exploiting the strong resonant microwave coupling between adjacent Rydberg states. Using experimentally achievable parameters gate fidelities >0.99 are possible on submicrosecond time scales for waveguide temperatures below 40 mK. This provides a mechanism for generating entanglement between two disparate quantum systems and represents an important step in the creation of a hybrid quantum interface applicable for both quantum simulation and quantum information processing.

Original language	English
Article number	010301
Number of pages	5
Journal	Physical Review A
Volume	89
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.89.010301
Publication status	Published - 16 Jan 2014

Keywords

hybrid quantum gate
atoms
photons
microwave coupling
Rydberg states
hybrid quantum interface

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10.1103/PhysRevA.89.010301

Hybrid atom-photon Quantum Gate in a superconducting microwave resonatorAccepted author manuscript, 339 KBLicence: Unspecified

Cite this

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AU - Isaacs, J. A.

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AU - Saffman, M.

PY - 2014/1/16

Y1 - 2014/1/16

N2 - We propose a hybrid quantum gate between an atom and a microwave photon in a superconducting coplanar waveguide cavity by exploiting the strong resonant microwave coupling between adjacent Rydberg states. Using experimentally achievable parameters gate fidelities >0.99 are possible on submicrosecond time scales for waveguide temperatures below 40 mK. This provides a mechanism for generating entanglement between two disparate quantum systems and represents an important step in the creation of a hybrid quantum interface applicable for both quantum simulation and quantum information processing.

AB - We propose a hybrid quantum gate between an atom and a microwave photon in a superconducting coplanar waveguide cavity by exploiting the strong resonant microwave coupling between adjacent Rydberg states. Using experimentally achievable parameters gate fidelities >0.99 are possible on submicrosecond time scales for waveguide temperatures below 40 mK. This provides a mechanism for generating entanglement between two disparate quantum systems and represents an important step in the creation of a hybrid quantum interface applicable for both quantum simulation and quantum information processing.

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KW - photons

KW - microwave coupling

KW - Rydberg states

KW - hybrid quantum interface

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Hybrid atom-photon quantum gate in a superconducting microwave resonator

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Jonathan Pritchard

A Hybrid Atom-Photon-Superconductor Quantum Interface

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Hybrid atom-photon quantum gate in a superconducting microwave resonator

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Jonathan Pritchard

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A Hybrid Atom-Photon-Superconductor Quantum Interface

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