Year: 2003
Type: article
Abstract: 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 $H.$ The gate synthesis consists of a sequence of evolutions governed by Hamiltonian $H,$ which are interspaced by local phase shifts applied to A and $B.$ 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 ${x}_{A}{p}_{B}$ that describes the effective off-resonant interaction of light with the collective atomic spin.
Source: Physical Review A
Author: Jaromír Fiurášek
Institutions: Université Libre de Bruxelles, Palacký University Olomouc
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1986651833