We analyze the non-Markovian character of the dynamics of an open two-level atom interacting with a gas of ultra-cold fermions. In particular, we discuss the connection between the phenomena of orthogonality catastrophe and Fermi edge singularity occurring in such a kind of environment and the memory-keeping effects which are displayed in the time evolution of the open system.
Plastina, F., Sindona, A., Goold, J., Lo Gullo, N., Lorenzo, S. (2013). Decoherence in a fermion environment: Non-Markovianity and Orthogonality Catastrophe. OPEN SYSTEMS & INFORMATION DYNAMICS, 20(3) [10.1142/S1230161213400052].
Decoherence in a fermion environment: Non-Markovianity and Orthogonality Catastrophe
LORENZO, Salvatore
2013-01-01
Abstract
We analyze the non-Markovian character of the dynamics of an open two-level atom interacting with a gas of ultra-cold fermions. In particular, we discuss the connection between the phenomena of orthogonality catastrophe and Fermi edge singularity occurring in such a kind of environment and the memory-keeping effects which are displayed in the time evolution of the open system.
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