173 citations · 392 across the 11 of their papers we have counts for
5 papers · 1 filter
Efficiency in Quantum Key Distribution Protocols with Entangled Gaussian States
C. Rodó, O. Romero-Isart, K. Eckert +1
Quantum key distribution (QKD) refers to specific quantum strategies which permit the secure distribution of a secret key between two parties that wish to communicate secretly. Qua…
Quantum State Transfer in Spin-1 Chains
O. Romero-Isart, K. Eckert, A. Sanpera
We study the transfer of quantum information through a Heisenberg spin-1 chain prepared in its ground state. We measure the efficiency of such a quantum channel {\em via} the fidel…
Quantum polarization spectroscopy of ultracold spinor gases
K. Eckert, L. Zawitkowski, A. Sanpera +2
We propose a method for the detection of ground state quantum phases of spinor gases through a series of two quantum nondemolition measurements performed by sending off-resonant, p…
Ultracold atomic Bose and Fermi spinor gases in optical lattices
K. Eckert, L. Zawitkowski, M. J. Leskinen +2
We investigate magnetic properties of Mott-insulating phases of ultracold Bose and Fermi spinor gases in optical lattices. We consider in particular the F=2 Bose gas, and the F=3/2…
A deterministic cavity-QED source of polarization entangled photon pairs
R. Garcia-Maraver, K. Eckert, R. Corbalan +1
We present two cavity quantum electrodynamics proposals that, sharing the same basic elements, allow for the deterministic generation of entangled photons pairs by means of a three…