Weak measurements, decoherence and cosmology
APA
Altamirano, N. (2017). Weak measurements, decoherence and cosmology. Perimeter Institute. https://pirsa.org/17060029
MLA
Altamirano, Natacha. Weak measurements, decoherence and cosmology. Perimeter Institute, Jun. 01, 2017, https://pirsa.org/17060029
BibTex
@misc{ pirsa_PIRSA:17060029, doi = {10.48660/17060029}, url = {https://pirsa.org/17060029}, author = {Altamirano, Natacha}, keywords = {Other}, language = {en}, title = {Weak measurements, decoherence and cosmology}, publisher = {Perimeter Institute}, year = {2017}, month = {jun}, note = {PIRSA:17060029 see, \url{https://pirsa.org}} }
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Abstract
In this work we consider a recent proposal in which gravitational interactions are mediated via the exchange of classical information and apply it to a quantized Friedman-Robertson-Walker (FRW) universe with the assumption that any test particles must feel a classical metric. We show that such a model results in decoherence in the FRW state that manifests itself as a dark energy fluid that fills the spacetime. Motivated by quantum-classical interactions this model is yet another example of theories with violation of energy-momentum conservation whose signature could have significant consequences for the observable universe.