2 papers
cond-mat.mes-hall2025
Characteristic determinant approach to the spectrum of one-dimensional -symmetric systems
Vladimir Gasparian, Peng Guo, Antonio Pérez Garrido +1
We obtain a closed form expression for the energy spectrum of -symmetric superlattice systems with complex potentials of periodic sets of two -potential…
astro-ph.SR2025
The wide binary frequency of metal-poor stars
N. Lodieu, A. Pérez Garrido, J. -Y. Zhang +5
This study is aimed at identifying possible low-mass and sub-stellar companions to stars with well-determined metallicities. We investigate the multiplicity of metal-poor stars alo…