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4 papers · 2 filters
Generating quantum discord between two distant Bose-Einstein condensates with Bell-like detection
M. Eghbali-Arani, H. Yavari, M. A. Shahzamanian +2
We propose a technique that enables the creation of quantum discord between two distant nodes, each containing a cavity consist of the Bose-Einstein condensate, by applying a non-i…
Phase diagram of a QED-cavity array coupled via a N-type level scheme
Jiasen Jin, Rosario Fazio, Davide Rossini
We study the zero-temperature phase diagram of a one-dimensional array of QED cavities where, besides the single-photon hopping, an additional coupling between neighboring cavities…
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…
Normal form decomposition for Gaussian-to-Gaussian superoperators
Giacomo De Palma, Andrea Mari, Vittorio Giovannetti +1
In this paper we explore the set of linear maps sending the set of quantum Gaussian states into itself. These maps are in general not positive, a feature which can be exploited as…