Hetet, GabrielPeng, AmyJohnsson, MattiasHope, JLam, Ping Koy2009-12-172010-12-202009-12-172010-12-20Physical Review A 77.1 (2008): 012323/1-161050-29471094-1622http://hdl.handle.net/10440/1017http://digitalcollections.anu.edu.au/handle/10440/1017We present a quantum multimodal treatment describing electromagnetically induced transparency EIT as a mechanism for storing continuous-variable quantum information in light fields. Taking into account the atomic noise and decoherences of realistic experiments, we numerically model the propagation, storage, and readout of signals contained in the sideband amplitude and phase quadratures of a light pulse using phase space methods. An analytical treatment of the effects predicted by this model is then presented. Finally, we use quantum information benchmarks to examine the properties of the EIT-based memory and show the parameters needed to operate beyond the quantum limit.16 pageshttp://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2008 The American Physical SocietyKeywords: Light; Phase space methods; Transparency; Analytical treatment; Continuous variables; Electromagnetically-induced transparency; Light fields; Phase quadrature; Quantum Information; Quantum limit; Quantum memory; Quantum optics2008-01-1810.1103/PhysRevA.77.0123232016-02-24