Quantum Message Exchange Based on Entanglement and Bell-State Measurements
arXiv:quant-ph/0504182 · doi:10.1016/j.physleta.2005.03.057
Abstract
We propose a scheme by which two parties can secretely and simultaneously exchange messages. The scheme requires the two parties to share entanglement and both to perform Bell-state measurements. Only two out of the four Bell states are required to be distinguished in the Bell-state measurements, and thus the scheme is experimentally feasible using only linear optical means. Generalizations of the scheme to high-dimensional systems and to multipartite entanglement are considered. We show also that the proposed scheme works even if the two parties do not possess shared reference frames.
To be published in Physics Letters A; supersedes quant-ph/0407138. This version includes a fair amount of new material, including a section discussing the case of no shared reference frames
References in corpus (5)
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- Quantum Cryptography Using Single Particle Entanglement