Linear quantum feedback networks

John Edward Gough, Rolf Gohm, Masahiro Yanagisawa

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

144 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

The mathematical theory of quantum feedback networks has recently been developed [J. Gough and M. R. James, e-print arXiv:0804.3442v2] for general open quantum dynamical systems interacting with bosonic input fields. In this article we show, for the special case of linear dynamical Markovian systems with instantaneous feedback connections, that the transfer functions can be deduced and agree with the algebraic rules obtained in the nonlinear case. Using these rules, we derive the transfer functions for linear quantum systems in series, in cascade, and in feedback arrangements mediated by beam splitter devices.
Iaith wreiddiolSaesneg
Rhif yr erthygl62104
CyfnodolynPhysical Review A
Cyfrol78
Rhif cyhoeddi6
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 08 Rhag 2008

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