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6 papers · 2 filters
Harnessing non-Markovian quantum memory by environmental coupling
Zhong-Xiao Man, Yun-Jie Xia, Rosario Lo Franco
Controlling the non-Markovian dynamics of open quantum systems is essential in quantum information technology since it plays a crucial role in preserving quantum memory. Albeit in…
Non-Hermitian Hamiltonian for a Modulated Jaynes-Cummings Model with PT Symmetry
Fabio Bagarello, Margherita Lattuca, Roberto Passante +2
We consider a two-level system such as a two-level atom, interacting with a cavity field mode in the rotating wave approximation, when the atomic transition frequency or the field…
Dynamics of a two-state system through a real level crossing
Benedetto D. Militello, Nikolay V. Vitanov
The dynamics of a two-state system whose energies undergo a real crossing at some instant of time is studied. At this instant, both the coupling and the detuning vanish simultaneou…
Interaction free and decoherence free states
Dariusz Chruściński, Anna Napoli, Marina Guccione +2
An interaction free evolving state of a closed bipartite system composed of two interacting subsystems is a generally mixed state evolving as if the interaction were a c-number. In…
Transfer of arbitrary two qubit states via a spin chain
S. Lorenzo, T. J. G. Apollaro, S. Paganelli +2
We investigate the fidelity of the quantum state transfer (QST) of two qubits by means of an arbitrary spin-1/2 network, on a lattice of any dimensionality. Under the assumptions t…
Interaction-free evolution in the presence of time-dependent Hamiltonians
Dariusz Chruściński, Antonino Messina, Benedetto Militello +1
The generalization of the concept of interaction-free evolutions (IFE) [A. Napoli, {\it et al.}, Phys. Rev. A {\bf 89}, 062104 (2014)] to the case of time-dependent Hamiltonians is…