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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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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DOI: https://doi.org/10.1007/978-3-030-01629-6_4
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