14 citations · 19 across the 6 of their papers we have counts for
3 papers · 1 filter
Mass-gap functional determinant approach for mobile Fermi polarons
Emilio Ramos Rodríguez, Eugen Dizer, Xin Chen +1
We extend the functional determinant approach (FDA), previously restricted to static impurities, to the case of finite-mass impurities by using the mass-gap description of Fermi po…
Emergent Fermi polarons in Dirac materials
Xin Chen, Eugen Dizer, Rafał Ołdziejewski +3
We investigate band-structure effects on the absorption spectra of quantum impurities in Dirac materials. We uncover the formation of novel quasiparticles -- Dirac-Fermi polarons -…
Interband optical conductivities in two-dimensional tilted Dirac bands revisited within the tight-binding model
Chao-Yang Tan, Jian-Tong Hou, Xin Chen +6
Within the framework of linear response theory, we theoretically investigated the interband longitudinal optical conductivities (LOCs) in two-dimensional (2D) tilted Dirac bands us…