3 papers
cond-mat.other2005★ 114 cited
Phase diagram of spin-1 bosons on one-dimensional lattices
Matteo Rizzi, Davide Rossini, Gabriele De Chiara +2
Spinor Bose condensates loaded in optical lattices have a rich phase diagram characterized by different magnetic order. Here we apply the Density Matrix Renormalization Group to ac…
quant-ph2005★ 113 cited
From perfect to fractal transmission in spin chains
Gabriele De Chiara, Davide Rossini, Simone Montangero +1
Perfect state transfer is possible in modulated spin chains, imperfections however are likely to corrupt the state transfer. We study the robustness of this quantum communication p…
quant-ph2004★ 29 cited
Cloning transformations in spin networks without external control
G. De Chiara, R. Fazio, C. Macchiavello +2
In this paper we present an approach to quantum cloning with unmodulated spin networks. The cloner is realized by a proper design of the network and a choice of the coupling betwee…