Experimental achievement of the entanglement assisted capacity for the depolarizing channel

Abstract

We experimentally demonstrate the achievement of the entanglement assisted capacity for classical information transmission over a depolarizing channel. The implementation is based on the generation and local manipulation of 2-qubit Bell states, which are finally measured at the receiver by a complete Bell state analysis. The depolarizing channel is realized by introducing quantum noise in a controlled way on one of the two qubits. This work demonstrates the achievement of the maximum allowed amount of information that can be shared in the presence of noise and the highest reported value in the noiseless case.

4 pages, 3 figures

References in corpus (7)

• Beating the channel capacity limit for linear photonic superdense coding
• Complete and Deterministic discrimination of polarization Bell state assisted by momentum entanglement
• Multi-path entanglement of two photons
• Experimental Realization of Optimal Noise Estimation for a General Pauli Channel
• Realizing controllable noise in photonic quantum information channels
• Entanglement-Enhanced Classical Communication over a Noisy Classical Channel
• Experimental implementation of a fully controllable depolarizing quantum operation

Cited by in corpus (8)

• Advances in quantum dense coding
• Practical route to entanglement-assisted communication over noisy bosonic channels
• Quantum Simulation of single-qubit thermometry using linear optics
• Entanglement-Assisted Communication Surpassing the Ultimate Classical Capacity
• Efficient superdense coding in the presence of non-Markovian noise
• Experimental entanglement-enhanced work extraction based on a Maxwell's demon
• Detecting Einstein-Podolsky-Rosen steering through entanglement detection
• Superdense Coding Interleaved with Forward Error Correction