Namur Institute For Complex Systems

Williams Dhelonga (UNamur)
2024-05-21 13:00 - 14:00 (Europe/Brussels)
Title : Exploring Weak measurements within the Einstein-Dirac Cosmological framework.
Abstract : Our study applies the Two-State Formalism alongside weak measurements within a spatially homogeneous and isotropic cosmological framework, wherein Dirac spinors are intricately coupled to classical gravity. To elucidate this, we provide detailed formulations for computing the weak values of the energy-momentum tensors, the Z component of spin, and the characterization of pure states. Weak measurements appear to be a generalization and extension of the computation already made by Finster an Hainzl, in A spatially homogeneous and isotropic Einstein-Dirac cosmology. Our analysis reveals that the acceleration of the Universe expansion can be understood as an outcome of postselection, underscoring the effectiveness of weak measurement as a discerning approach for gauging cosmic acceleration. https://arxiv.org/abs/2405.02108

The seminar will take place in Room S08 at the Faculty of Sciences.
