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Soliton formation in a bound state in the continuum GaN waveguide polariton laser
V. Develay, O. Bahrova, I. Septembre +11
We study polaritonic bound states in the continuum (BIC) created in GaN waveguides. The existence of symmetry-protected BICs is confirmed by the suppression of light emission and t…
cond-mat.mes-hall2025
Dirac points annihilation and its obstruction characterized by Euler number and quaternionic charges in kagome lattice
M. Finck, D. Solnyshkov, J. Dubois +1
We investigate the topological phenomenon of Dirac point annihilation and its obstruction in three-band, real symmetric Hamiltonians with time-reversal symmetry, and their relation…