Entanglement properties of optical coherent states under amplitude damping | Zendy

Ricardo Wickert | Zendy; Nadja K. Bernardes | Zendy; Peter van Loock | Zendy; Timothy C. Ralph | Zendy; Ping Koy Lam | Zendy

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Entanglement properties of optical coherent states under amplitude damping

Author(s) -

Ricardo Wickert,

Nadja K. Bernardes,

Peter van Loock,

Timothy C. Ralph,

Ping Koy Lam

Publication year - 2011

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3630195

Subject(s) - quantum entanglement , qubit , orthogonality , entanglement distillation , physics , coherent states , quantum mechanics , concurrence , amplitude , pauli exclusion principle , amplitude damping channel , w state , mathematics , quantum , quantum discord , geometry

Through concurrence, we characterize the entanglement of optical coherent-state qubits subject to an amplitude damping channel. We investigate the distillation capabilities of known error correcting codes and obtain upper bounds on the entanglement depending on the non-orthogonality of the input states and the channel damping parameter, thus quantitatively analysing these photon-loss codes which are naturally reminiscent of the standard qubit codes against Pauli errors

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