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Congress of the Department of Physics

CDIP 2017: Toward a Science Campus in Milan pp 37–46Cite as

Quantum Simulation of Non-Markovian Qubit Dynamics by an All-Optical Setup

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Abstract

We address the experimental implementation of a quantum simulator based on an optical setup. Our device can simulate the dynamical evolution of a qubit undergoing a dephasing process. In particular, we focus on the dynamics arising from the interaction with a classical stochastic field. We encode the state of the qubit in the polarization of a single photon, while the realizations of the stochastic evolution affect its spectral components by a programmable spatial-light-modulator. This setup can simulate in one shot the ensemble-averaged dynamics of the dephasing qubit. We experimentally reconstruct the system density matrix and we show how it is possible to move from a Markovian to a non-Markovian quantum map by changing the spectral parameter of the simulated noise.

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Authors and Affiliations

  1. Quantum Technology Lab, Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, 20133, Milan, Italy

    Claudia Benedetti, Simone Cialdi, Matteo A. C. Rossi, Bassano Vacchini, Dario Tamascelli, Stefano Olivares & Matteo G. A. Paris

  2. INFN, Sezione di Milano, 20133, Milan, Italy

    Simone Cialdi & Bassano Vacchini

Authors
  1. Claudia Benedetti
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  2. Simone Cialdi
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  3. Matteo A. C. Rossi
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  4. Bassano Vacchini
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  5. Dario Tamascelli
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  6. Stefano Olivares
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  7. Matteo G. A. Paris
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Corresponding author

Correspondence to Claudia Benedetti .

Editor information

Editors and Affiliations

  1. (Deceased), Milan, Italy

    Pier Francesco Bortignon

  2. Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, Milan, Italy

    Giuseppe Lodato

  3. Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, Milan, Italy

    Emanuela Meroni

  4. Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, Milan, Italy

    Matteo G.A. Paris

  5. Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, Milan, Italy

    Laura Perini

  6. Dipartimento di Fisica “Aldo Pontremoli”, Università degli Studi di Milano, Milan, Italy

    Alessandro Vicini

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Benedetti, C. et al. (2018). Quantum Simulation of Non-Markovian Qubit Dynamics by an All-Optical Setup. In: Bortignon, P., Lodato, G., Meroni, E., Paris, M., Perini, L., Vicini, A. (eds) Toward a Science Campus in Milan. CDIP 2017. Springer, Cham. https://doi.org/10.1007/978-3-030-01629-6_4

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