Work

Non-Markovian Behavior of Small and Large Complex Quantum Systems

Year: 2011

Type: article

Abstract: The channel induced by a complex system interacting strongly with a qubit is calculated exactly under the assumption of randomness of its eigenvectors. The resulting channel is represented as an isotropic time-dependent oscillation of the Bloch ball, leading to non-Markovian behavior, even in the limit of infinite environments. Two contributions are identified: one due to the density of states and the other due to correlations in the spectrum. Prototype examples, one for chaotic and the other for regular dynamics are explored.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.107.080404

Authors: Marko Žnidarič, Carlos Pineda, Ignacio García-Mata

Institutions: University of Ljubljana, Universidad Nacional Autónoma de México, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Físicas de Mar del Plata, Comisión Nacional de Energía Atómica

Language: English

Topic: Quantum chaos and dynamical systems

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Consejo Nacional de Ciencia y Tecnología, Javna Agencija za Raziskovalno Dejavnost RS

OpenAlex ID: W2035022688

FWCI: 6.872

Cites: 30

Cited by: 80

Related to: 10