21 citations · 21 across the 3 of their papers we have counts for
3 papers
quant-ph2025
Variational principle for the time evolution operator, its usefulness in effective theories of condensed matter systems and a glimpse into the role played by the quantum geometry of unitary transformations
Michael Vogl
This work discusses a variational approach to determining the time evolution operator. We directly see a glimpse of how a generalization of the quantum geometric tensor for unitary…
cond-mat.stat-mech2024
Linear differential equation approach to the Loschmidt amplitude
Michael Vogl
The Loschmidt echo is a popular quantity that allows making predictions about the stability of quantum states under time evolution. In our work, we present an approach that allows…
cond-mat.mes-hall2016★ 21 cited
Semiclassics for matrix Hamiltonians: The Gutzwiller trace formula and applications to the graphene-type systems
M. Vogl, O. Pankratov, S. Shallcross
We have extended the semi-classical theory to include a general account of matrix valued Hamiltonians, i.e. those that describe quantum systems with internal degrees of freedoms, b…