Topic: defects

Investigate quantum materials for sensing, including nitrogen-vacancy centers in diamond, with the NIMS Semiconductor Defect Design Group. Work includes electron-spin-resonance characterization of color centers, crystal processing to control their structures, and analysis of defects and impurities. One position with a negotiable start in January 2027 or later. The initial appointment is for one year, renewable after annual review up to five years; published monthly salary JPY 345,425. Applications are accepted until the position is filled. Upload a ZIP through the official role page’s Box link

Poisson sigma models connect geometric deformation with quantum field theory. This talk extends them into higher-dimensional theories with holomorphic and topological directions and relates the construction to quantization of factorization algebras. It develops interfaces, boundaries and defects, then uses Koszul duality to connect the models with quantum-group structures, including examples involving Lie bialgebras, W-algebras and Yangians.