496 citations · 2.4k across the 71 of their papers we have counts for
4 papers · 1 filter
Non-Hermitian Lindhard function and Friedel oscillations
Balázs Dóra, Doru Sticlet, Cătălin Paşcu Moca
The Lindhard function represents the basic building block of many-body physics and accounts for charge response, plasmons, screening, Friedel oscillation, RKKY interaction etc. Her…
Time dependent electric transport in nodal-loop semimetals
Zoltán Okvátovity, László Oroszlány, Balázs Dóra
Close to the Fermi energy, nodal loop semimetals have a torus-shaped, strongly anisotropic Fermi surface which affects their transport properties. Here we investigate the non-equil…
Kubo formula for non-Hermitian systems and tachyon optical conductivity
Doru Sticlet, Balázs Dóra, Cătălin Paşcu Moca
Linear response theory plays a prominent role in various fields of physics and provides us with extensive information about the thermodynamics and dynamics of quantum and classical…
Defect production due to time-dependent coupling to environment in the Lindblad equation
Balázs Gulácsi, Balázs Dóra
Recently defect production was investigated during non-unitary dynamics due to non-Hermitian Hamiltonian. By ramping up the non-Hermitian coupling linearly in time through an excep…