Entanglement properties of composite quantum systems

Details Entanglement properties of composite quantum systems Entanglement properties of composite quantum systems

2002-10-14

arxiv.org/abs/quant-ph/0210107v1

Quantum Information Processing, Gerd Leuchs, Thomas Beth (Eds), Wiley-VCH, Verlag GmbH 2003.

Physics

Quantum Physics

12 pages including figures

Scientific paper

We present here an overview of our work concerning entanglement properties of composite quantum systems. The characterization of entanglement, i.e. the possibility to assert if a given quantum state is entangled with others and how much entangled it is, remains one of the most fundamental open questions in quantum information theory. We discuss our recent results related to the problem of separability and distillability for distinguishable particles, employing the tool of witness operators. Finally, we also state our results concerning quantum correlations for indistinguishable particles.

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