Manipulating and probing microwave fields in a cavity by quantum non-demolition photon counting

S. Haroche; I. Dotsenko; S. Deleglise; C. Sayrin; X. Zhou; S. Gleyzes; C. Guerlin; S. Kuhr; M. Brune; J-M Raimond

doi:10.1088/0031-8949/2009/T137/014014

Manipulating and probing microwave fields in a cavity by quantum non-demolition photon counting

S. Haroche, I. Dotsenko, S. Deleglise, C. Sayrin, X. Zhou, S. Gleyzes, C. Guerlin, S. Kuhr, M. Brune, J-M Raimond

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

1 Citation (Scopus)

Abstract

We perform quantum non-demolition (QND) photon counting on a microwave field trapped in a very high Q superconducting cavity, employing circular Rydberg atoms as non-absorbing light probes. Beyond realizing fundamental tests of quantum measurement theory, we use this QND method to prepare non-classical Fock and Schrodinger cat states of the field and to reconstruct their Wigner functions. Monitoring the evolution of these functions provides a direct observation of the decoherence process. Quantum feedback procedures will enable us to steer the field towards target states and to protect them against decoherence.

Original language	English
Article number	014014
Number of pages	7
Journal	Physica Scripta
Volume	2009
Issue number	T137
DOIs	https://doi.org/10.1088/0031-8949/2009/T137/014014
Publication status	Published - 1 Dec 2009

Keywords

quantum mechanics
optics
molecular physics
microwave fileds
cavity
quantum optics
lasers

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10.1088/0031-8949/2009/T137/014014

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title = "Manipulating and probing microwave fields in a cavity by quantum non-demolition photon counting",

abstract = "We perform quantum non-demolition (QND) photon counting on a microwave field trapped in a very high Q superconducting cavity, employing circular Rydberg atoms as non-absorbing light probes. Beyond realizing fundamental tests of quantum measurement theory, we use this QND method to prepare non-classical Fock and Schrodinger cat states of the field and to reconstruct their Wigner functions. Monitoring the evolution of these functions provides a direct observation of the decoherence process. Quantum feedback procedures will enable us to steer the field towards target states and to protect them against decoherence.",

keywords = "quantum mechanics , optics, molecular physics , microwave fileds, cavity, quantum optics , lasers ",

author = "S. Haroche and I. Dotsenko and S. Deleglise and C. Sayrin and X. Zhou and S. Gleyzes and C. Guerlin and S. Kuhr and M. Brune and J-M Raimond",

note = "141st Nobel Symposium on Qubits for Future Quantum Information, Gothenburg, SWEDEN, MAY 25-28, 2009",

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T1 - Manipulating and probing microwave fields in a cavity by quantum non-demolition photon counting

AU - Haroche, S.

AU - Dotsenko, I.

AU - Deleglise, S.

AU - Sayrin, C.

AU - Zhou, X.

AU - Gleyzes, S.

AU - Guerlin, C.

AU - Kuhr, S.

AU - Brune, M.

AU - Raimond, J-M

N1 - 141st Nobel Symposium on Qubits for Future Quantum Information, Gothenburg, SWEDEN, MAY 25-28, 2009

PY - 2009/12/1

Y1 - 2009/12/1

N2 - We perform quantum non-demolition (QND) photon counting on a microwave field trapped in a very high Q superconducting cavity, employing circular Rydberg atoms as non-absorbing light probes. Beyond realizing fundamental tests of quantum measurement theory, we use this QND method to prepare non-classical Fock and Schrodinger cat states of the field and to reconstruct their Wigner functions. Monitoring the evolution of these functions provides a direct observation of the decoherence process. Quantum feedback procedures will enable us to steer the field towards target states and to protect them against decoherence.

AB - We perform quantum non-demolition (QND) photon counting on a microwave field trapped in a very high Q superconducting cavity, employing circular Rydberg atoms as non-absorbing light probes. Beyond realizing fundamental tests of quantum measurement theory, we use this QND method to prepare non-classical Fock and Schrodinger cat states of the field and to reconstruct their Wigner functions. Monitoring the evolution of these functions provides a direct observation of the decoherence process. Quantum feedback procedures will enable us to steer the field towards target states and to protect them against decoherence.

KW - quantum mechanics

KW - optics

KW - molecular physics

KW - microwave fileds

KW - cavity

KW - quantum optics

KW - lasers

U2 - 10.1088/0031-8949/2009/T137/014014

DO - 10.1088/0031-8949/2009/T137/014014

M3 - Article

SN - 0031-8949

VL - 2009

JO - Physica Scripta

JF - Physica Scripta

IS - T137

M1 - 014014

ER -

Manipulating and probing microwave fields in a cavity by quantum non-demolition photon counting

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Keywords

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