Dissipative state transfer and Maxwell's demon in single quantum trajectories: Excitation transfer between two noninteracting qubits via unbalanced dissipation rates

no code implementations • 27 Jan 2021 • Fabrizio Minganti, Vincenzo Macrì, Alessio Settineri, Salvatore Savasta, Franco Nori

We introduce a protocol to transfer excitations between two noninteracting qubits via purely dissipative processes (i. e., in the Lindblad master equation there is no coherent interaction between the qubits).

Quantum Physics

TRK Sum Rule for Interacting Photons

no code implementations • 6 Feb 2020 • Salvatore Savasta, Omar Di Stefano, Franco Nori

The Thomas-Reiche-Kuhn sum rule is a fundamental consequence of the position-momentum commutation relation for an atomic electron and it provides an important constraint on the transition matrix elements for an atom.

Quantum Physics