Measurable entanglement for tripartite quantum pure states of qubits

Abstract

We show that for tripartite quantum pure states of qubits, all the kinds of entanglement in terms of SLOCC classification are experimentally measurable by simple projective measurements, provided that four copies of the composite quantum system are available. In particular, the entanglement of reduced density matrices, even though they are mixed states, can be exactly determined in experiment. Concurrence of assistance is also shown to be measurable by introducing an interesting equations with explicit physical meanings.

arXiv comment4 pages, 1 figure. Phys. Rev. A 76, 022324 (2007)

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Cited by in corpus (24)

• Quantum Coherence via Skew Information and Its Polygamy
• Quantifying entanglement resources
• Entanglement monogamy relations of qubit systems
• Polygamy of Distributed Entanglement
• Observable estimation of entanglement for arbitrary finite-dimensional mixed states
• Generalized Monogamy Relations of Concurrence for N-qubit Systems
• Tripartite entanglement measure under local operations and classical communication
• Invariant-based entanglement monotones as expectation values and their experimental detection
• Measurable Concurrence of Mixed States
• Resource Theory of Total Quantum Coherence
• Lower Bound of Multipartite Concurrence Based on Sub-quantum State Decomposition
• Preparing two-atom entangled state in a cavity and probing it via quantum non-demolition measurement
• Probing quantum entanglement, quantum discord, classical correlation, and the quantum state without disturbing them
• Monogamy and entanglement in tripartite quantum states
• Monogamy equality in $2\otimes 2\otimes d$ quantum systems
• Generalized Entanglement Monogamy and Polygamy Relations for N -Qubit Systems
• Generalised monogamy relation of convex-roof extended negativity in multi-level systems
• Lower bound on concurrence for arbitrary-dimensional tripartite quantum systems
• Tighter generalized monogamy and polygamy relations for multiqubit systems
• Measurable genuine tripartite entanglement of ($2\otimes 2\otimes n$)-dimensional quantum states via only two simultaneous copies
• Systematic generation of entanglement measures for pure states
• Describing a Quantum Channel by State Tomography of a Single Probe State
• Entanglement of Assistance as a measure of multiparty entanglement
• Generalized product-form monogamy relations in multi-qubit systems