Geometric phase accumulated in a driven quantum system coupled to a structured environment

VILLAR, PAULA I.; SOBA, ALEJANDRO

Physical Review A

AMS

Año: 2020 vol. 101

2469-9926

We study the role of driving in a two-level system evolving under the presence of a structured en-vironment in dierent regimes. We nd that adding a periodical modulation to the two-level systemcan greatly enhance the survival of the geometric phase for many time periods in an intermediatecoupling to the environment. In this regime, where there are some non markovian features charac-terizing the dynamics, we have noted that adding driving to the system leads to a suppression ofnon-markovianity altogether, allowing for a smooth dynamical evolution and an enhancement of therobustness condition of the geometric phase. As the model studied herein is the one used to modelexperimental situations such as hybrid quantum classical systems feasible with current technologies,we positive believe this knowledge can aid the search for physical set-ups that best retain quantumproperties under dissipative dynamics.