TY - JOUR
T1 - Exploring weak measurements within the Einstein-Dirac cosmological framework
AU - Dhelonga-Biarufu, Williams
AU - Lambert, Dominique
N1 - Publisher Copyright:
© 2024 American Physical Society.
PY - 2024/10/15
Y1 - 2024/10/15
N2 - 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. We compute the weak values of the energy-momentum tensors, the Z component of spin, and the pure states. Weak measurements are a generalization and extension of the computation already made by Finster and Hainzl [A spatially homogeneous and isotropic Einstein-Dirac cosmology, J. Math. Phys. (N.Y.) 52, 042501 (2011)JMAPAQ0022-248810.1063/1.3567157] 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.
AB - 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. We compute the weak values of the energy-momentum tensors, the Z component of spin, and the pure states. Weak measurements are a generalization and extension of the computation already made by Finster and Hainzl [A spatially homogeneous and isotropic Einstein-Dirac cosmology, J. Math. Phys. (N.Y.) 52, 042501 (2011)JMAPAQ0022-248810.1063/1.3567157] 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.
UR - http://www.scopus.com/inward/record.url?scp=85205692983&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.110.083503
DO - 10.1103/PhysRevD.110.083503
M3 - Article
AN - SCOPUS:85205692983
SN - 2470-0010
VL - 110
JO - Physical review D
JF - Physical review D
IS - 8
M1 - 083503
ER -