Multidimensional quantum information based on single-photon temporal wavepackets

Abstract

We propose a multidimensional quantum information encoding approach based on temporal modulation of single photons, where the Hilbert space can be spanned by an in-principle infinite set of orthonormal temporal profiles. We analyze two specific realizations of such modulation schemes, and show that error rate per symbol can be smaller than 1% for practical implementations. Temporal modulation may enable multidimensional quantum communication over the existing fiber optical infrastructure, as well as provide an avenue for probing high-dimensional entanglement approaching the continuous limit.

11 pages, 5 figures

References in corpus (7)

• Beating the channel capacity limit for linear photonic superdense coding
• Entangling Independent Photons by Time Measurement
• A Quantum Pulse Gate based on Spectrally Engineered Sum Frequency Generation
• From quantum pulse gate to quantum pulse shaper -- enigneered frequency conversion in nonlinear optical waveguides
• Time-bin modulated polarization-entangled biphotons from cavity-enhanced down-conversion
• Joint Temporal Density Measurements for Two-Photon State Characterization
• Bright filter-free source of indistinguishable photon pairs