Physical Review A

Conditional nonlinear operations by sequential Jaynes-Cummings interactions

Ki-min Park B, Petr Marek, Radim Filip

Published Jul 18, 2016• 4 citations

Abstract

Nonlinear operations are essential for quantum information processing. We propose a way of implementing a class of nonlinear operations by sequential application of conditional gates based on Jaynes-Cummings (JC) interaction and projective measurements. The scheme has many advantages over the previously proposed all-optical methods and can be applied in several available experimental platforms, such as cavity quantum electrodynamics, trapped ions, and others. We demonstrate performance of the approach on the example of the cubic nonlinearity. We show several different ways in which the full nonlinear operation can be decomposed into sequences of the individual gates, and we compare their performance.

DOI: 10.1103/physreva.94.012332

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