Enhancing photon squeezing one Leviton at a time

Abstract : A mesoscopic device in the simple tunnel junction or quantum point contact geometry emits microwaves with remarkable quantum properties, when subjected to a sinusoidal drive in the GHz range. In particular, single and two-photon squeezing as well as entanglement in the frequency domain have been reported. By revising the photo-assisted noise analysis developed in the framework of electron quantum optics, we present a detailed comparison between the cosine drive case and other experimentally relavent periodic voltages such as rectangular and Lorentzian pulses. We show that the latter drive is the best candidate in order to enhance quantum features and purity of the outgoing single and two-photon states, a noteworthy result in a quantum information perspective.
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Physical Review B : Condensed matter and materials physics, American Physical Society, 2018, 97 (15), pp.155135. 〈10.1103/PhysRevB.97.155135〉
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https://hal.archives-ouvertes.fr/hal-01876136
Contributeur : Thibaut Jonckheere <>
Soumis le : mardi 18 septembre 2018 - 11:00:22
Dernière modification le : lundi 18 mars 2019 - 15:49:24
Document(s) archivé(s) le : mercredi 19 décembre 2018 - 13:59:55

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D. Ferraro, F. Ronetti, J. Rech, T. Jonckheere, M. Sassetti, et al.. Enhancing photon squeezing one Leviton at a time. Physical Review B : Condensed matter and materials physics, American Physical Society, 2018, 97 (15), pp.155135. 〈10.1103/PhysRevB.97.155135〉. 〈hal-01876136〉

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