3 papers
gr-qc2024
Quantum Field Theory of Black Hole Perturbations with Backreaction III. Spherically symmetric 2nd order Maxwell sector
Jonas Neuser, Thomas Thiemann
In this paper we extend reduced phase space approach to black hole perturbation theory to Maxwell matter. We expand the resulting reduced Hamiltonian to second order in the gravito…
gr-qc2024
Quantum Field Theory of Black Hole Perturbations with Backreaction II. Spherically symmetric 2nd order Einstein sector
Jonas Neuser, Thomas Thiemann
In this second paper of our series we focus on the classical pure gravity sector of spherically symmetric black hole perturbations and expand the reduced Hamiltonian to second orde…
quant-ph2023
Smooth, invariant orthonormal basis for singular potential Schroedinger operators
J. Neuser, T. Thiemann
In a recent contribution we showed that there exists a smooth, dense domain for singular potential Schrödinger operators on the real line which is invariant under taking derivative…