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5 papers · 2 filters
Bounds on mixed state entanglement
Bruno Leggio, Anna Napoli, Hiromichi Nakazato +1
In the general framework of mixed states, we derive an explicit bound for bipartite NPT entanglement based on the mixedness characterization of the physical system. The…
Cavity dark mode of distant coupled atom-cavity systems
Donald H. White, Shinya Kato, Nikolett Nemet +2
We report on a combined experimental and theoretical investigation into the normal modes of an all-fiber coupled cavity-quantum-electrodynamics system. The interaction between atom…
Observation of dressed states of distant atoms with delocalized photons in coupled-cavities quantum electrodynamics
Shinya Kato, Nikolett Német, Kohei Senga +4
In a cavity quantum electrodynamics (QED) system, where atoms coherently interact with photons in a cavity, the eigenstates of the system are the superposition states of atoms and…
Experimental investigation of quantum decay at short, intermediate and long times via integrated photonics
Andrea Crespi, Francesco V. Pepe, Paolo Facchi +5
The decay of an unstable system is usually described by an exponential law. Quantum mechanics predicts strong deviations of the survival probability from the exponential: indeed, t…
Analytically solvable -symmetry dynamics from su(1,1)-symmetry problems
R. Grimaudo, A. S. M. de Castro, H. Nakazato +1
A protocol for explicitly constructing the exact time-evolution operators generated by time-dependent -symmetry Hamiltonians is reported. Its mathematical applicab…