Entanglement without dissipation: A touchstone for an exact comparison of entanglement measures

Limits for entanglement measures.

The basic principle of entanglement processing says that entanglement cannot increase under local operations and classical communication. Based on this principle, we show that any entanglement measure E suitable for the regime of a high number of identically prepared entangled pairs satisfies ED < or = E < or = EF, where ED and EF are the entanglement of distillation and formation, respectively...

An introduction to entanglement measures

Entanglement measures

Theory of quantifying entanglement is reviewed in a uni ed framework. The subject is divided with respect to nite and asymptotic regime, as well as abstract and operational approach. Important measures are presented within four classes according to di erent methods of construction. The relations between postulates for asymptotic and nite regime are clari ed. Many results are formulated based on...

Exact and Asymptotic Measures of Multipartite Pure State Entanglement

Charles H. Bennett, Sandu Popescu, Daniel Rohrlich, John A. Smolin, and Ashish V. Thapliyal IBM Research Division, Yorktown Heights, NY 10598, USA — bennetc, [email protected] Isaac Newton Institute, Cambridge University, Cambridge, UK and BRIMS, Hewlett-Packard Labs., Stoke Gifford, Bristol BS12 6QZ, UK — [email protected] School of Physics and Astronomy,Tel Aviv University, Tel Aviv,...

Witnessing entanglement without entanglement witness operators.

Quantum mechanics predicts the existence of correlations between composite systems that, although puzzling to our physical intuition, enable technologies not accessible in a classical world. Notwithstanding, there is still no efficient general method to theoretically quantify and experimentally detect entanglement of many qubits. Here we propose to detect entanglement by measuring the statistic...