Pulsed homodyne Gaussian quantum tomography with low detection efficiency

Esposito M, Benatti F, Floreanini R, Olivares S, Randi F, Titimbo K, Pividori M, Novelli F, Cilento F, Parmigiani F, Fausti D (2014)


Publication Type: Journal article

Publication year: 2014

Journal

Book Volume: 16

Article Number: 043004

DOI: 10.1088/1367-2630/16/4/043004

Abstract

Pulsed homodyne quantum tomography usually requires a high detection efficiency, limiting its applicability in quantum optics. Here, it is shown that the presence of low detection efficiency (<50%) does not prevent the tomographic reconstruction of quantum states of light, specifically, of Gaussian states. This result is obtained by applying the so-called minimax adaptive reconstruction of the Wigner function to pulsed homodyne detection. In particular, we prove, by both numerical and real experiments, that an effective discrimination of different Gaussian quantum states can be achieved. Our finding paves the way to a more extensive use of quantum tomographic methods, even in physical situations in which high detection efficiency is unattainable. © 2014 IOP Publishing Ltd.

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APA:

Esposito, M., Benatti, F., Floreanini, R., Olivares, S., Randi, F., Titimbo, K.,... Fausti, D. (2014). Pulsed homodyne Gaussian quantum tomography with low detection efficiency. New Journal of Physics, 16. https://dx.doi.org/10.1088/1367-2630/16/4/043004

MLA:

Esposito, Martina, et al. "Pulsed homodyne Gaussian quantum tomography with low detection efficiency." New Journal of Physics 16 (2014).

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