We introduce a protocol based on optimal control to drive many-body quantum systems into long-lived entangled states, protected from decoherence by large energy gaps, without requiring any a priori knowledge of the system. With this approach it is possible to implement scalable entanglement-storage units. We test the protocol in the Lipkin - Meshkov - Glick model, a prototype many-body quantum system that describes different experimental setups, and in the ordered Ising chain, a model representing a possible implementation of a quantum bus. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Caneva, T., Calarco, T., Montangero, S. (2012). Entanglement-storage units. NEW JOURNAL OF PHYSICS, 14, 1-13 [10.1088/1367-2630/14/9/093041].
Entanglement-storage units
Calarco T.;
2012
Abstract
We introduce a protocol based on optimal control to drive many-body quantum systems into long-lived entangled states, protected from decoherence by large energy gaps, without requiring any a priori knowledge of the system. With this approach it is possible to implement scalable entanglement-storage units. We test the protocol in the Lipkin - Meshkov - Glick model, a prototype many-body quantum system that describes different experimental setups, and in the ordered Ising chain, a model representing a possible implementation of a quantum bus. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
