Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session E28: Experiment and Theory of Quantum Input-output Networks
8:00 AM–11:00 AM,
Tuesday, March 6, 2018
LACC Room: 405
Sponsoring Unit: DQI
Chair: Kevin Young, Sandia Natl Labs
Abstract: E28.00005 : Coherent quantum effects in networks of degenerate optical parametric oscillators*
9:36 AM–9:48 AM
Recent experiments have shown that networks of degenerate optical parametric oscillators (OPOs) can encode and approximately solve combinatorial optimization problems. While these experiments presently operate in a regime well described by semiclassical models, it is interesting to ask whether coherent quantum effects such as entanglement or non-Gaussianity due to strong nonlinearities could qualitatively or quantitatively change the mechanism of the “solution” process. Using the SLH formalism for quantum input-output theory, we describe a general quantum network model for multiple degenerate OPOs connected via arbitrary beamsplitter couplings . For a small number of oscillators, we numerically compare the solution process of this model in the mean-field limit against the extremely quantum regime where two-photon loss dominates linear loss in the individual OPOs.
 T. Onodera, E. Ng, and H. Mabuchi, doi: 10.1364/QIM.2017.QW3B.2 (2017).
*This work has been supported by the NSF under award number PHY-1648807.
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