Temporal shaping of single-photon pulses

Gaston Hornecker; Emanuel Peinke; Julien Claudon; Alexia Auffèves; Jean-Michel Gérard

doi:10.1117/12.2178991

7 May 2015 Temporal shaping of single-photon pulses

Gaston Hornecker, Emanuel Peinke, Julien Claudon, Alexia Auffèves, Jean-Michel Gérard

Proceedings Volume 9505, Quantum Optics and Quantum Information Transfer and Processing 2015; 95050N (2015) https://doi.org/10.1117/12.2178991
Event: SPIE Optics + Optoelectronics, 2015, Prague, Czech Republic

Abstract

The ability to control the temporal shape of single-photon pulses is highly desirable in quantum information processing. For instance, it has been shown that Gaussian pulses are best suited for linear optics quantum computing¹. By mimicking the time-reversal of a spontaneous emission event, it also allows to optimize the absorption of the prepared photons by a quantum emitter. In this work we investigate the potential of using fast modifications of the detuning between an atomic system and a cavity mode during photon emission to reach this goal. We compare two approaches consisting of varying the emitter or cavity frequency. The latter, achievable by a fast modification of the refractive index of a solid state cavity, will be shown to have negligible influence on the photon spectrum. It allows to create Gaussian pulses interacting with a fidelity to the target photons of 99%, as well as time-reversed photons absorbed by an atom in a cavity with a probability of 93%.

Citation Download Citation

Gaston Hornecker, Emanuel Peinke, Julien Claudon, Alexia Auffèves, and Jean-Michel Gérard "Temporal shaping of single-photon pulses", Proc. SPIE 9505, Quantum Optics and Quantum Information Transfer and Processing 2015, 95050N (7 May 2015); https://doi.org/10.1117/12.2178991

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