5 papers
Highly-Degenerate Photonic Waveguide Structures for Holonomic Computation
Julien Pinske, Lucas Teuber, Stefan Scheel
We investigate an all-out optical setup allowing for generation of non-Abelian geometric phases on its large degenerate eigenspaces. The proposal has the form of an M -pod system a…
Solving the quantum master equation of coupled harmonic oscillators with Lie algebra methods
Lucas Teuber, Stefan Scheel
Based on a Liouville-space formulation of open systems, we present two methods to solve the quantum dynamics of coupled harmonic oscillators experiencing Markovian loss. Starting p…
Holonomic Gates in Pseudo-Hermitian Quantum Systems
Julien Pinske, Lucas Teuber, Stefan Scheel
The time-dependent pseudo-Hermitian formulation of quantum mechanics allows to study open system dynamics in analogy to Hermitian quantum systems. In this setting, we show that the…
Observation of PT-symmetric quantum interference
Friederike U. J. Klauck, Lucas Teuber, Marco Ornigotti +3
Parity-Time (PT) symmetric quantum mechanics is a complex extension of conventional Hermitian quantum mechanics in which physical observables possess a real eigenvalue spectrum. Ho…
Optimal design strategy for non-Abelian geometric phases using Abelian gauge fields based on quantum metric
Mark Kremer, Lucas Teuber, Alexander Szameit +1
Geometric phases, which are ubiquitous in quantum mechanics, are commonly more than only scalar quantities. Indeed, often they are matrix-valued objects that are connected with non…