Experimental demonstration of a time-domain multidimensional quantum channel

Abstract

We present the first experimental realization of a flexible multidimensional quantum channel where the Hilbert space dimensionality can be controlled electronically. Using electro-optical modulators (EOM) and narrow-band optical filters, quantum information is encoded and decoded in the temporal degrees of freedom of photons from a long-coherence-time single-photon source. Our results demonstrate the feasibility of a generic scheme for encoding and transmitting multidimensional quantum information over the existing fiber-optical telecommunications infrastructure.

14 pages, 4 figures

References in corpus (6)

• Beating the channel capacity limit for linear photonic superdense coding
• Entangling Independent Photons by Time Measurement
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• Bright filter-free source of indistinguishable photon pairs
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Cited by in corpus (4)

• Spectral shearing of quantum light pulses by electro-optic phase modulation
• Quantification of multidimensional entanglement stored in a crystal
• Theory of time-bin entangled photons from quantum emitters
• Simple quantum password checking