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Cosmological ensemble and directional averages of observables

We show that at second order ensemble averages of observables and directional averages do not commute due to gravitational lensing. In principle this non-commutativity is significant for a variety of quantities we often use as observables. We derive the relation between the ensemble average and the...

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Detalles Bibliográficos
Autores principales: Bonvin, Camille, Clarkson, Chris, Durrer, Ruth, Maartens, Roy, Umeh, Obinna
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1475-7516/2015/07/040
http://cds.cern.ch/record/2007356