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Excitonic Mott insulator in a Bose-Fermi-Hubbard system of moiré / heterobilayer
Beini Gao, Daniel G. Suárez-Forero, Supratik Sarkar +13
Understanding the Hubbard model is crucial for investigating various quantum many-body states and its fermionic and bosonic versions have been largely realized separately. Recently…
Magneto-Optical Measurements of the Negatively Charged 2 Exciton in WSe
J. C. Sell, J. R. Vannucci, D. G. Suarez-Forero +8
Monolayer transition metal dichalcogenides host a variety of optically excited quasiparticles species that stem from two-dimensional confinement combined with relatively large carr…
Mode Delocalization in Disordered Photonic Chern Insulator
Udvas Chattopadhyay, Sunil Mittal, Mohammad Hafezi +1
In disordered two dimensional Chern insulators, a single bulk extended mode is predicted to exist per band, up to a critical disorder strength; all the other bulk modes are localiz…
Measurement of topological invariants in a 2D photonic system
Sunil Mittal, Sriram Ganeshan, Jingyun Fan +2
A hallmark feature of topological physics is the presence of one-way propagating chiral modes at the system boundary. The chirality of edge modes is a consequence of the topologica…
Imaging topological edge states in silicon photonics
M. Hafezi, S. Mittal, J. Fan +2
Topological features - global properties not discernible locally - emerge in systems from liquid crystals to magnets to fractional quantum Hall systems. Deeper understanding of the…