21 citations · 90 across the 17 of their papers we have counts for
17 papers
Exploring Entanglement Entropy for a Particle on a Torus with constant Metric and constant -Gauge Field
Helmuth Huffel, Gerald Kelnhofer
In this paper, we focus on the entanglement entropy associated with a particle confined to a torus with constant metric and -terms related to a constant external -gauge fi…
Aspects of Higher-Abelian Gauge Theories at zero and finite temperature: Topological Casimir effect, duality and Polyakov loops
Gerald Kelnhofer
Higher-abelian gauge theories associated with Cheeger-Simons differential characters are studied on compact manifolds without boundary. The paper consists of two parts: First the f…
Field Space Entanglement Entropy, Zero Modes and Lifshitz Models
Helmuth Huffel, Gerald Kelnhofer
The field space entanglement entropy of a quantum field theory is obtained by integrating out a subset of its fields. We study an interacting quantum field theory consisting of mas…
Remarks on the thermodynamics and the vacuum energy of a quantum Maxwell gas on compact and closed manifolds
Gerald Kelnhofer
The quantum Maxwell theory at finite temperature at equilibrium is studied on compact and closed manifolds in both the functional integral- and Hamiltonian formalism. The aim is to…
The Active Universe
Alexander Gluck, Helmuth Huffel, Sasa Ilijic +1
Active motion is a concept in complex systems theory and was successfully applied to various problems in nonlinear dynamics. Explicit studies for gravitational potentials were miss…
Functional integration and gauge ambiguities in generalized abelian gauge theories
Gerald Kelnhofer
We consider the covariant quantization of generalized abelian gauge theories on a closed and compact n-dimensional manifold whose space of gauge invariant fields is the abelian gro…