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

Autor: Rijavec, Simone, Di Pietra, Giuseppe
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: 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 an excitation on a chain of three interacting qubits. We show how the system-environment coupling strength and the degree of non-Markovianity affect the process. Interestingly, in some cases a Markovian environment is preferable to enhance the coherent transport of the excitation.
Databáze: arXiv