Work

Depolarizing channel as a completely positive map with memory

Year: 2004

Type: article

Abstract: The prevailing description for dissipative quantum dynamics is given by the Lindblad form of a Markovian master equation, used under the assumption that memory effects are negligible. However, in certain physical situations, the master equation is essentially of a non-Markovian nature. In this paper we examine master equations that possess a memory kernel, leading to a replacement of white noise by colored noise. The conditions under which this leads to a completely positive, trace-preserving map are discussed for an exponential memory kernel.

Source: Physical Review A

DOI: 10.1103/physreva.70.010304

Authors: Sonja Daffer, Krzysztof Wódkiewicz, James D. Cresser, John K. McIver

Institutions: University of New Mexico, University of Warsaw, Macquarie University

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1978183237

FWCI: 4.3

Cites: 19

Cited by: 198

Related to: 10