9 citations · 14 across the 10 of their papers we have counts for
11 papers
Effects of Ill-Defined Domain of Definitions of the Parameter Operator on Berry Curvature and the Adiabatic Theorem
Georgios Konstantinou, Konstantinos Moulopoulos
We present a comprehensive analytical study that extends the conventional formulation of Berry curvature, highlighting its derivation in the context of problematic domains of defin…
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…
Ground State thermodynamic and response properties of electron gas in a strong magnetic and electric field: Exact analytical solutions for a conventional semiconductor and for Graphene
Georgios Konstantinou, Konstantinos Moulopoulos
Consequences of an exceedingly strong electric field (E field) on the ground state energetics and transport properties of a 2D spinless electron gas in a perpendicular magnetic fie…
The "forgotten" pseudomomenta and gauge changes in generalized Landau Level problems: spatially nonuniform magnetic and temporally varying electric fields
Georgios Konstantinou, Konstantinos Moulopoulos
By perceiving gauge invariance as an analytical tool in order to get insight into the states of the "generalized Landau problem" (a charged quantum particle moving inside a magneti…
Emergent non-Hermitian contributions to the Ehrenfest and Hellmann-Feynman theorems
Georgios Konstantinou, Kyriakos Kyriakou, Konstantinos Moulopoulos
We point out that two of the most important theorems of Quantum Mechanics, the Ehrenfest theorem and the Hellmann-Feynman theorem, lack in their standard form important information…