Work

Evolution equation for entanglement of multiqubit systems

Year: 2010

Type: article

Abstract: We discuss entanglement evolution of a multiqubit system in which one of its qubits is subjected to a general noisy channel. For such a system, an evolution equation of entanglement for a lower bound for multiqubit concurrence is derived. Using this evolution equation, the entanglement dynamics of an initially mixed three-qubit state composed of a Greenberger-Horne-Zeilinger (GHZ) and a $W$ state is analyzed if one of the qubits is affected by a phase, an amplitude, or a generalized amplitude damping channel.

Source: Physical Review A

DOI: 10.1103/physreva.82.062327

Authors: Michael Siomau, Stephan Fritzsche

Institutions: Max Planck Society, Heidelberg University, Max Planck Institute for Nuclear Physics, GSI Helmholtz Centre for Heavy Ion Research, University of Oulu

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2080128666

FWCI: 2.715

Cites: 28

Cited by: 18

Related to: 10