13 citations · 53 across the 23 of their papers we have counts for
4 papers · 1 filter
Orbital Magnetization in Solids: Boundary contributions as a non-Hermitian effect
K. Kyriakou, K. Moulopoulos
The theory of orbital magnetization is reconsidered by defining additional quantities that incorporate a non-Hermitian effect due to anomalous operators that break the domain of de…
Non-Hermiticities even in quantum systems that are closed
K. Moulopoulos
Rarely noted paradoxes and their resolution lead to non-Hermitian behaviors due to boundary terms, even for closed systems and with real potentials. The role played by these non-He…
Topological anomalies in the off-diagonal Ehrenfest theorem and their role on optical transitions in solar cells
Georgios Konstantinou, Konstantinos Moulopoulos
We analytically demonstrate the emergence of surface non-Hermitian boundary contributions that appear in an extended form of the quantum Ehrenfest theorem and are crucial (although…
Strong Electric Field in 2D Graphene: The Integer Quantum Hall regime from a different (many-body) perspective
Georgios Konstantinou, Konstantinos Moulopoulos
We investigate the emerging consequences of an applied strong in-plane electric field on a macroscopically large graphene sheet subjected to a perpendicular magnetic field, by dete…