The quantization of gravity: The quantization of the full Einstein equations
arXiv:2308.12974 · doi:10.3390/sym15081599
Abstract
We quantized the full Einstein equations in a globally hyperbolic spacetime , , and found solutions of the resulting hyperbolic equation in a fiber bundle which can be expressed as a product of spatial eigenfunctions (eigendistributions) and temporal eigenfunctions. The spatial eigenfunctions form a basis in an appropriate Hilbert space while the temporal eigenfunctions are solutions to a second order ordinary differential equation in . In case and provided the cosmological constant is negative the temporal eigenfunctions are eigenfunctions of a self-adjoint operator such that the eigenvalues are countable and the eigenfunctions form an orthonormal basis of a Hilbert space.
Feature Paper https://www.mdpi.com/2073-8994/15/8/1599