The Rice Engineering Magazine features our work on 2D materials for single photon emission
The Fall 2019 issue of the Rice Engineering Magazine  features our recent work on 2D materials for single photon emission (SPE).
Single photon emission by a solid-state source requires presence of a distinct two-level quantum system, usually provided by point defects. In a recent Nano Lett., we note that a number of qualities offered by novel, two-dimensional materials, their all-surface openness and optical transparence, tighter quantum confinement, and reduced charge screening—are advantageous for achieving an ideal SPE. On the basis of first-principles calculations and point-group symmetry analysis, we have proposed a strategy to design paramagnetic defect complex with reduced symmetry, meeting all the requirements for SPE: its electronic states are well isolated from the host material bands, belong to a majority spin eigenstate, and can be controllably excited by polarized light. The defect complex is thermodynamically stable and appears feasible for experimental realization to serve as an SPE-source, essential for quantum computing, with ReMoVS in MoS2 as one of the most practical candidates.
 M. Williams, “Making light work of computing”, Rice Eng. Mag. (Fall 2019), 34-35 (2019)
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