Introduction to the basics of entanglement theory in continuous-variable systems

Details Introduction to the basics of entanglement theory in continuous-variable systems Introduction to the basics of entanglement theory in continuous-variable systems

2003-12-09

arxiv.org/abs/quant-ph/0312071v2

Int. J. Quant. Inf. 1, 479 (2003)

Physics

Quantum Physics

14 pages, 4 figures. Invited contribution to the EQIS' 03 volume of the International Journal of Quantum Information. Technica

Scientific paper

We outline the basic questions that are being studied in the theory of entanglement. Following a brief review of some of the main achievements of entanglement theory for finite-dimensional quantum systems such as qubits, we will consider entanglement in infinite-dimensional systems. Asking for a theory of entanglement in such systems under experimentally feasible operations leads to the development of the theory of entanglement of Gaussian states. Results of this theory are presented and the tools that have been developed for it are applied to a number of problems.

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