Matteo Rossi - Università di Parma #
Decoherence and non-Markovianity of a two-qubit system interacting with a stochastic
classical field #
Studying the interaction of a quantum system with its environment
plays a fundamental role in the development of quantum technologies. De-
coherence may be induced by classical or quantum noise, i.e. by the inter-
action with an environment described classically or quantum-mechanically.
The classical description is often more realistic for environments with a
very large number of degrees of freedom and it has also been shown that
even certain quantum environments may be described with equivalent
classical models. In this work, we consider single- and two-qubit systems
coupled to classical stochastic fields, focusing on Gaussian processes, and
address both the dynamics of quantum correlations, entanglement and
discord, and the non-Markovianity induced by the external fields.