Work

Schmidt measure as a tool for quantifying multiparticle entanglement

Year: 2001

Type: article

Abstract: We present a measure of quantum entanglement which is capable of quantifying the degree of entanglement of a multipartite quantum system. This measure, which is based on a generalization of the Schmidt rank of a pure state, is defined on the full state space, and is shown to be an entanglement monotone, that is, it cannot increase under local quantum operations with classical communication and under mixing. For a large class of mixed states this measure of entanglement can be calculated exactly, and it provides a detailed classification of mixed states.

Source: Physical Review A

DOI: 10.1103/physreva.64.022306

Authors: Jens Eisert, Hans J. Briegel

Institutions: University of Potsdam, Imperial College London, Ludwig-Maximilians-Universität München

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: University of Oxford, European Commission, Deutsche Forschungsgemeinschaft

OpenAlex ID: W1967181082

FWCI: 4.135

Cites: 22

Cited by: 251

Related to: 10