Protected State Transfer via an Approximate Quantum Adder
G. Gatti, D. Barberena, M. Sanz, E. Solano
TL;DR
This paper introduces a decoherence-protected method for transmitting single photon quantum states through noisy channels using an approximate quantum adder, outperforming traditional teleportation methods at certain distances.
Contribution
It presents a novel protocol utilizing an engineered approximate quantum adder to enhance quantum state transfer robustness against decoherence.
Findings
Higher success probability than teleportation for certain distances
Effective protection against depolarizing noise
Implementation via spontaneous parametric down converters
Abstract
We propose a decoherence protected protocol for sending single photon quantum states through depolarizing channels. This protocol is implemented via an approximate quantum adder engineered through spontaneous parametric down converters, and shows higher success probability than distilled quantum teleportation protocols for distances below a threshold depending on the properties of the channel.
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