Generation of distributed entangled coherent states over a lossy environment with inefficient detectors

2013/10/28 by Austin P. Lund, A. P. Lund, Timothy C. Ralph +3
Computer Science · Mathematics · Physics and Astronomy · #Coherent states #Computer science #Detector #Fidelity #Lossy compression #Mathematics #Optics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum mechanics #Scheme (mathematics) #Telecommunications #quant-ph

paper · pdf · doi:10.1103/physreva.88.052335

arxiv created 2013/10/28 · openalex publication_date 2013/11/27 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Entangled coherent states are useful for various applications in quantum information processing, but they are sensitive to loss. We propose a scheme to generate distributed entangled coherent states over a lossy environment in such a way that the fidelity is independent of the losses at detectors heralding the generation of the entanglement. We compare our scheme with a previous one for the same purpose [Ourjoumtsev et al., Nat. Phys. 5, 189 (2009)] and find parameters for which our scheme results in superior performance.

Citations

• Quantum teleportation of entangled coherent states
• Quantum and classical Liouville dynamics of the anharmonic oscillator
• Generation of Large-Amplitude Coherent-State Superposition via Ancilla-Assisted Photon Subtraction
• Coherent state topological cluster state production
• Violation of Bell’s inequality using classical measurements and nonlinear local operations
• Failure of Local Realism Revealed by Extremely-Coarse-Grained Measurements