55 citations · 265 across the 14 of their papers we have counts for
14 papers
Random-walk topological transition revealed via electron counting
G. Engelhardt, M. Benito, G. Platero +2
The appearance of topological effects in systems exhibiting a non-trivial topological band structure strongly relies on the coherent wave nature of the equations of motion. Here, w…
Semiclassical bifurcations and topological phase transitions in a one-dimensional lattice of coupled Lipkin-Meshkov-Glick models
A. V. Sorokin, M. Aparicio Alcalde, V. M. Bastidas +3
In this work we study a one-dimensional lattice of Lipkin-Meshkov-Glick models with alternating couplings between nearest-neighbors sites, which resembles the Su-Schrieffer-Heeger…
Bosonic Josephson effect in the Fano-Anderson model
G. Engelhardt, G. Schaller, T. Brandes
We investigate the coherent dynamics of a non-interacting Bose-Einstein condensate in a system consisting of two bosonic reservoirs coupled via a spatially localized mode. We descr…
Excited-state quantum phase transitions and periodic dynamics
G. Engelhardt, V. M. Bastidas, W. Kopylov +1
We investigate signatures of the excited-state quantum phase transition in the periodic dynamics of the Lipkin-Meshkov-Glick model and the Tavis-Cummings model. In the thermodynami…
Lasing and antibunching of optical phonons in semiconductor double quantum dots
Rin Okuyama, Mikio Eto, Tobias Brandes
We theoretically propose optical phonon lasing in a double quantum dot (DQD) fabricated on a semiconductor substrate. No additional cavity or resonator is required. An electron in…
A diagrammatic description of the equations of motion, current, and noise within the second-order von Neumann approach
O. Karlström, C. Emary, P. Zedler +5
We investigate the second-order von Neumann approach from a diagrammatic point-of-view and demonstrate its equivalence with the resonant tunneling approximation. Investigation of h…