3 papers
cond-mat.mes-hall2026
Exceptional horns in -root graphene and Lieb photonic ring lattices
A. M. Marques, D. Viedma, V. Ahufinger +1
We present a systematic construction of non-Hermitian tight-binding lattices whose Bloch spectra are th roots of those of Hermitian parent two-dimensional (2D) lattices, namely…
cond-mat.quant-gas2026
Geometrical control of topology with orbital angular momentum modes
Yunjia Zhai, Anselmo M. Marques, Ricardo G. Dias +2
We study how the topological properties of a one-dimensional staggered lattice, loaded into states with orbital angular momentum , can be controlled simply by tuning the relat…
quant-ph2026
Robust certification of high-dimensional quantum devices
Javier Fernández, Albert Rico, David Viedma +6
Certifying quantum behavior from classically accessible data is essential for secure communication and scalable quantum technologies. While powerful certification methods such as B…