Abstract
In this Letter, we propose a simple optical architecture based on phase-only programmable spatial light modulators, in order to characterize general processes on photonic spatial quantum systems in a Hilbert space. We demonstrate the full reconstruction of typical noises affecting quantum computing, such as amplitude shifts, phase shifts, and depolarizing channels in dimension . We have also reconstructed simulated atmospheric turbulences affecting a free-space transmission of qudits in dimension . In each case, quantum process tomography was performed in order to obtain the matrix that fully describes the corresponding quantum channel, . Fidelities between the states are experimentally obtained after going through the channel, and the expected ones are above 97%.
© 2018 Optical Society of America
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