173 citations · 389 across the 7 of their papers we have counts for
8 papers · 1 filter
Preparation of Decoherence Free Cluster States with Optical Superlattices
Liang Jiang, Ana Maria Rey, Oriol Romero-Isart +3
We present a protocol to prepare decoherence free cluster states using ultracold atoms loaded in a two dimensional superlattice. The superlattice geometry leads to an array of 2*2…
Quantum Ratchets for Quantum Communication with Optical Superlattices
Oriol Romero-Isart, Juan Jose Garcia-Ripoll
We propose to use a quantum ratchet to transport quantum information in a chain of atoms trapped in an optical superlattice. The quantum ratchet is created by a continuous modulati…
Transport and Entanglement Generation in the Bose-Hubbard Model
O. Romero-Isart, K. Eckert, C. Rodó +1
We study entanglement generation via particle transport across a one-dimensional system described by the Bose-Hubbard Hamiltonian. We analyze how the competition between interactio…
Efficient quantum state transfer in spin chains via adiabatic passage
K. Eckert, O. Romero-Isart, A. Sanpera
We propose a method for quantum state transfer in spin chains using an adiabatic passage technique. Modifying even and odd nearest-neighbour couplings in time allows to achieve tra…
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…