Triplet-like correlation symmetry of continuous variable entangled states

2009/06/05 by Gerd Leuchs, Ruifang Dong, Denis Sych · 1 citation
Computer Science · Physics and Astronomy · #Continuous variable #Hidden variable theory #Linear subspace #Physics #Pure mathematics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum decoherence #Quantum entanglement #Quantum mechanics #Qubit #State (computer science) #Statistical physics #Symmetry (geometry) #Theoretical physics #quant-ph

paper · pdf · doi:10.1088/1367-2630/11/11/113040

7 pages, 5 figures. Comments are welcome

arxiv created 2009/06/05 · openalex publication_date 2009/11/20 · arxiv updated 2015/05/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We report on a continuous variable analogue of the triplet two-qubit Bell states. We discuss the symmetry properties of entangled states of either kind, and theoretically and experimentally demonstrate a remarkable similarity of two-mode continuous variable entangled states with triplet Bell states with respect to their correlation patterns. Understanding the symmetry properties helps finding decoherence-free subspaces.

Citations

• Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
• Separability Criterion for Density Matrices
• Quantum states with Einstein-Podolsky-Rosen correlations admitting a hidden-variable model
• Asymptotic Relative Entropy of Entanglement
• Inseparability Criterion for Continuous Variable Systems
• Separability of mixed states: necessary and sufficient conditions
• Peres-Horodecki Separability Criterion for Continuous Variable Systems
• Can Quantum-Mechanical Description of Physical Reality be Considered Complete?

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