Qubit-Programmable Operations on Quantum Light Fields

Abstract : Engineering quantum operations is a crucial capability needed for developing quantum technologies and designing new fundamental physics tests. Here we propose a scheme for realising a controlled operation acting on a travelling continuous-variable quantum field, whose functioning is determined by a discrete input qubit. This opens a new avenue for exploiting advantages of both information encoding approaches. Furthermore, this approach allows for the program itself to be in a superposition of operations, and as a result it can be used within a quantum processor, where coherences must be maintained. Our study can find interest not only in general quantum state engineering and information protocols, but also details an interface between different physical platforms. Potential applications can be found in linking optical qubits to optical systems for which coupling is best described in terms of their continuous variables, such as optomechanical devices.
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Scientific Reports, Nature Publishing Group, 2015, 5, pp.15125. 〈10.1038/srep15125〉
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https://hal.archives-ouvertes.fr/hal-01228963
Contributeur : Rosa Tualle-Brouri <>
Soumis le : dimanche 15 novembre 2015 - 20:34:08
Dernière modification le : vendredi 23 février 2018 - 08:36:02

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Marco Barbieri, Nicolò Spagnolo, Franck Ferreyrol, Rémi Blandino, Brian J Smith, et al.. Qubit-Programmable Operations on Quantum Light Fields . Scientific Reports, Nature Publishing Group, 2015, 5, pp.15125. 〈10.1038/srep15125〉. 〈hal-01228963〉

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