7 citations · 8 across the 6 of their papers we have counts for
4 papers · 1 filter
Thermodynamic signatures of spectral compression in weakly non-Hermitian Dirac fermions
Juan Pablo Esparza, Francisco J. Peña, Patricio Vargas +1
Non-Hermitian band descriptions capture how loss, gain, and environmental coupling reshape quantum matter, yet most experimental probes remain wave based or dynamical. Here we deve…
Minimal Hamiltonian deformations as bulk probes of effective non-Hermiticity in Dirac materials
Sergio Pino-Alarcón, Juan Pablo Esparza, Vladimir Juričić
Non-Hermitian (NH) Dirac semimetals describe open gain--loss systems. Yet at charge neutrality, models featuring real spectrum often look Hermitian-like, with NH effects absorbed i…
Exceptional flat bands in bipartite non-Hermitian lattices
Juan Pablo Esparza, Vladimir Juričić
Flat bands, in which kinetic energy is quenched and quantum states become macroscopically degenerate, host a rich variety of correlated and topological phases, from unconventional…
Exceptional magic angles in non-Hermitian twisted bilayer graphene
Juan Pablo Esparza, Vladimir Juricic
Twisted bilayer graphene (TBG) features strongly correlated and topological phases due to its flat bands emerging near the magic angle. However, the effects of the non-Hermiticity,…