Work

Tunable non-Markovian dynamics in a collision model: an application to coherent transport

Year: 2025

Type: article

Abstract: We propose a collision model to investigate the information dynamics of a system coupled to an environment with varying degrees of non-Markovianity. We control the degree of non-Markovianity by applying a depolarising channel to a fixed and rigid reservoir of qubits. We characterise the effect of the depolarising channel and apply the model to study the coherent transport of information on a chain of three interacting qubits. We show how the system-environment coupling probability and the degree of non-Markovianity affect the process. Interestingly, in some cases a Markovian environment is preferable to reduce information loss and enhance the coherent transport.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/adc32b

Authors: Simone Rijavec, Giuseppe Di Pietra

Institutions: Tel Aviv University, University of Oxford

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funder: Clarendon Fund