Entanglement-Assisted Quantum Convolutional Coding

Understand

We show how to protect a stream of quantum information from decoherence induced by a noisy quantum communication channel.

• We exploit preshared entanglement and a convolutional coding structure to develop a theory of entanglement-assisted quantum convolutional coding.
• Our construction produces a Calderbank-Shor-Steane (CSS) entanglement-assisted quantum convolutional code from two arbitrary classical binary convolutional codes.
• The rate and error-correcting properties of the classical convolutional codes directly determine the corresponding properties of the resulting entanglement-assisted quantum convolutional code.