Propagation of spatially entangled qudits through free space
arXiv:quant-ph/0605232 · doi:10.1103/PhysRevA.73.032340
Abstract
We show the propagation of entangled states of high-dimensional quantum systems. The qudits states were generated using the transverse correlation of the twin photons produced by spontaneous parametric down-conversion. Their free-space distribution was performed at the laboratory scale and the propagated states maintained a high-fidelity with their original form. The use of entangled qudits allow an increase in the quantity of information that can be transmitted and may also guarantee more privacy for communicating parties. Therefore, studies about propagating entangled states of qudits are important for the effort of building quantum communication networks.
5 Pages, 4 Figures, REVTeX4
References in corpus (6)
- Distribution of time-bin qubits over 50 km of optical fiber
- Security of Quantum Key Distribution with Entangled Photons Against Individual Attacks
- Generation of maximally entangled states of qudits using twin photons
- Experimental demonstration of quantum correlations over more than 10 km
- Security of Quantum Key Distribution with Entangled Qutrits
- Distributing entanglement and single photons through an intra-city, free-space quantum channel
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