1. Continuous-variable quantum computing in optical time-frequency modes using quantum memories
- Author
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Marco Barbieri, Peter C. Humphreys, Ian A. Walmsley, Joshua Nunn, W. Steven Kolthammer, Animesh Datta, Humphreys Peter, C, Kolthammer W., Steven, Nunn, Joshua, Barbieri, Marco, Datta, Animesh, and Walmsley Ian, A.
- Subjects
Quantum network ,Quantum Physics ,Computer science ,Quantum sensor ,FOS: Physical sciences ,General Physics and Astronomy ,One-way quantum computer ,Quantum imaging ,Topology ,01 natural sciences ,010309 optics ,Quantum error correction ,Qubit ,Quantum mechanics ,0103 physical sciences ,Quantum information ,Quantum Physics (quant-ph) ,010306 general physics ,Quantum computer - Abstract
We develop a scheme for time-frequency encoded continuous-variable cluster-state quantum computing using quantum memories. In particular, we propose a method to produce, manipulate and measure 2D cluster states in a single spatial mode by exploiting the intrinsic time-frequency selectivity of Raman quantum memories. Time-frequency encoding enables the scheme to be extremely compact, requiring a number of memories that is a linear function of only the number of different frequencies in which the computational state is encoded, independent of its temporal duration. We therefore show that quantum memories can be a powerful component for scalable photonic quantum information processing architectures., 5 pages, 6 figures, and supplementary information. Updated to be consistent with published version
- Published
- 2016