3 papers
quant-ph2026
Photon Efficiency of High-Dimensional Quantum Key Distribution
Vera Uzunova, Marcin Jarzyna
We investigate entanglement-based quantum key distribution protocols, with particular emphasis on their efficiency under realistic conditions of satellite quantum communications, w…
cond-mat.mes-hall2023
Nontrivial Aharonov-Bohm effect and alternating dispersion of magnons in cone-state ferromagnetic rings
Vera Uzunova, Lukas Körber, Agapi Kavvadia +4
Soft magnetic dots in the form of thin rings have unique topological properties. They can be in a vortex state with no vortex core. Here, we study the magnon modes of such systems…
cond-mat.str-el2023
Analytic density of states of two-dimensional Chern insulator
Vera Uzunova, Krzysztof Byczuk
We present analytic expressions for the density of states and its consistent derivation for the two-dimensional Qi-Wu-Zhang (QWZ) Hamiltonian, a generic model for the Chern topolog…