162 citations · 979 across the 17 of their papers we have counts for
17 papers
A reduced phase space quantisation of a model in Algebraic Quantum Gravity with polarised Gowdy symmetry
Kristina Giesel, Andreas Leitherer, David Winnekens
We consider a reduced phase space quantisation of a model with Gowdy symmetry in which gravity has been coupled to Gaussian dust. We complete the quantisation programme in re…
Hamiltonian Theory: Dynamics
Thomas Thiemann, Kristina Giesel
This chapter focuses on the status of the implementation of the dynamics in the canonical version of Loop Quantum Gravity (LQG). Concretely this means to provide a mathematical mea…
Quantum gravity phenomenology at the dawn of the multi-messenger era -- A review
A. Addazi, J. Alvarez-Muniz, R. Alves Batista +157
The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experim…
Coherent states for fractional powers of the harmonic oscillator Hamiltonian
Kristina Giesel, Almut Vetter
Inspired by special and general relativistic systems that can have Hamiltonians involving square roots, or more general fractional powers, in this article we address the question h…
Reduced Loop Quantization with four Klein-Gordon Scalar Fields as Reference Matter
Kristina Giesel, Almut Vetter
We perform a reduced phase space quantization of gravity using four Klein-Gordon scalar fields as reference matter as an alternative to the Brown-Kuchar dust model in [1], where du…
Manifestly Gauge Invariant Perturbations of Scalar-Tensor Theories of Gravity
Yu Han, Kristina Giesel, Yongge Ma
The general relativistic perturbations of scalar-tensor theories (STT) of gravity are studied in a manifestly gauge invariant Hamiltonian formalism. After the derivation of the Ham…