par Fiurasek, Jaromir 
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 68
Publication Publié, 2003
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 68
Publication Publié, 2003
Article révisé par les pairs
| Résumé : | We investigate the synthesis of continuous-variable two-mode unitary gates in the setting where two modes A and B are coupled by a fixed quadratic Hamiltonian [Formula Presented] The gate synthesis consists of a sequence of evolutions governed by Hamiltonian [Formula Presented] which are interspaced by local phase shifts applied to A and [Formula Presented] We concentrate on protocols that require the minimum number of necessary steps and we show how to implement the beam splitter and the two-mode squeezer in just three steps. Particular attention is paid to Hamiltonian [Formula Presented] that describes the effective off-resonant interaction of light with the collective atomic spin. © 2003 The American Physical Society. |
