496 citations · 2.4k across the 71 of their papers we have counts for
71 papers
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…
Universal conductance of a PT-symmetric Luttinger liquid after a quantum quench
Cătălin Paşcu Moca, Balázs Dóra
We study the non-equilibrium dynamics and transport of a PT-symmetric Luttinger liquid (LL) after an interaction quench. The system is prepared in domain wall initial state. After…
Dynamics of entanglement after exceptional quantum quench
Ádám Bácsi, Balázs Dóra
We investigate a quantum quench from a critical to an exceptional point. The initial state, prepared in the ground state of a critical hermitian system, is time evolved with a non-…