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All-optical non-Markovian stroboscopic quantum simulator

Mon, 2016-05-30 22:48 - Davide Rossini
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Date: 
2015-01-30
Author(s): 

Jiasen Jin, Vittorio Giovannetti, Rosario Fazio, Fabio Sciarrino, Paolo Mataloni, Andrea Crespi, and Roberto Osellame

Reference: 

Phys. Rev. A 91, 012122 (2015)

URL: 

http://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.012122

An all-optical scheme for simulating non-Markovian evolution of a quantum system is proposed. It uses only linear optics elements and by controlling the system parameters allows one to control the presence or absence of information backflow from the environment. A sufficient and necessary condition for the non-Markovianity of our channel based on Gaussian inputs is proved. Various criteria for detecting non-Markovianity are also investigated by checking the dynamical evolution of the channel.