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cond-mat.mes-hall2022
Polaritonic and Excitonic Time Crystals based on TMDC strips in an external periodic potential
Gabriel P. Martins, Oleg L. Berman, Godfrey Gumbs
We investigated the dynamics of Bose-Einstein condensates (BECs) under an external periodic potential. We consider two such systems, the first being made of exciton-polaritons in a…
cond-mat.mes-hall2022
Anisotropic optical conductivities of Model Topological nodal-line Semimetals
Sita Kandel, Godfrey Gumbs, Oleg L. Berman
With the use of simple models, we investigated the optical conductivity of a nodal-line semimetal (NLSM) whose crossing of the conduction and valence bands near the origin ( poi…