245 citations · 1.8k across the 59 of their papers we have counts for
59 papers
Roller coaster dynamics -- from point particles to a continuum model using Lagrange density
Michael Kaschke, Holger Cartarius
Analyzing the motion of a roller coaster allows for an instructive introduction of various theoretical concepts in a concrete and enjoyable context. We start by modeling the roller…
Why and How to Implement Worked Examples in Upper Division Theoretical Physics
Philipp Scheiger, Ronny Nawrodt, Holger Cartarius
Studying worked examples has been shown by extensive research to be an effective method for learning to solve well-structured problems in physics and mathematics. The effectiveness…
Balancing gain and loss in symmetrised multi-well potentials
Daniel Dizdarevic, Holger Cartarius, Jörg Main +1
Balanced gain and loss leads to stationary dynamics in open systems. This occurs naturally in PT-symmetric systems, where the imaginary part of the potential describing gain and lo…
Purity oscillations in coupled Bose-Einstein condensates
Jonathan Stysch, Felix Roser, Dennis Dast +2
It is shown that the distinct oscillations of the purity of the single-particle density matrix for many-body open quantum systems with balanced gain and loss reported by Dast et al…
Hybrid Breathers in Nonlinear -Symmetric Metamaterials
Sascha Böhrkircher, Sebastian Erfort, Holger Cartarius +1
On a two-dimensional planar parity-time-(-)symmetric nonlinear magnetic metamaterial, consisting of split-ring dimers with balanced gain and loss, discrete breather s…
Topological invariants in dissipative extensions of the Su-Schrieffer-Heeger model
Felix Dangel, Marcel Wagner, Holger Cartarius +2
We investigate dissipative extensions of the Su-Schrieffer-Heeger model with regard to different approaches of modeling dissipation. In doing so, we use two distinct frameworks to…