2008/04/21 by Radim Filip · 19 citations
Computer Science · Physics and Astronomy · #Artificial intelligence #Computer science #Noise (video) #Nonclassical light #Photon #Physics #Probabilistic logic #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Quantum optics and atomic interactions #Statistical physics #Superposition principle #Upload #quant-ph
paper · pdf · doi:10.1103/physreva.78.012329
published in Physical Review A 78(1) (American Physical Society) · 8 pages, 5 figures, submitted September 11, 2007
arxiv created 2008/04/21 · openalex publication_date 2008/07/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A deterministic excess-noise-free recording of unknown quantum states to continuous-variable quantum atomic memory is proposed. To reach this, the memory experiment is extended by the presqueezing of the recorded state of light and deterministic squeezing post-correction of the recorded state. To upload highly nonclassical resources to the memory, such as single-photon state or superposition of coherent states, a probabilistic method is suggested. With the help of presqueezing of the resource state of light and probabilistic squeezing post-correction, this probabilistic upload approaches a lossless transfer of these highly nonclassical states into the quantum memory. Without the squeezing post-correction, the highly nonclassical state can still be probabilistically uploaded in the limit of a weak light-atom coupling.