Fetching the paper…

Reading the bibliography…

2012

Is there any coherent measure for eternal inflation?

Olum, Ken D.

Original
PDF
Post on X

Understand

An eternally inflating universe produces an infinite amount of spatial volume, so every possible event happens an infinite number of times, and it is impossible to define probabilities in terms of frequencies.

This problem is usually addressed by means of a measure, which regulates the infinities and produces meaningful predictions.
I argue that any measure should obey certain general axioms, but then give a simple toy model in which one can prove that no measure obeying the axioms exists.
In certain cases of eternal inflation there are measures that obey the axioms, but all such measures appear to be unacceptable for other reasons.

Is there any coherent measure for eternal inflation? · Around

Built on

N. Bostrom, Anthropic Bias: Observation Selection Effects (Routledge, New York, 2002)
2002
Earlier work this paper cites.
B. Feldstein, L. J. Hall, and T. Watari, Phys. Rev. D72
2005
Earlier work this paper cites.
R. Easther, E. A. Lim, and M. R. Martin, JCAP 0603
2006
Earlier work this paper cites.
J. Garriga, D. Schwartz-Perlov, A. Vilenkin, and S. Winitzki, JCAP 0601
2006
Earlier work this paper cites.
J. Garriga and A. Vilenkin, Prog. Theor. Phys. Suppl. 163
2006
Earlier work this paper cites.

Similar

R. Bousso, Phys. Rev. D79
2009
Cited alongside, same era.
Y. Sekino and L. Susskind, Phys. Rev. D80
2009
Cited alongside, same era.
M. Noorbala and V. Vanchurin (2010), eprint 1006.4148
2010
Cited alongside, same era.
A. De Simone et al., Phys. Rev. D82
2010
Cited alongside, same era.
A. Vilenkin, Phys. Rev. Lett. 74
Cited in the paper.
A. Vilenkin, Phys. Rev. D52
Cited in the paper.

Then

R. Bousso, B. Freivogel, S. Leichenauer, and V. Rosenhaus, Phys. Rev. D83
2011
Later among the works it cites.
A. H. Guth and V. Vanchurin (2011), eprint 1108.0665
2011
Later among the works it cites.
Y. Nomura, JHEP 11
2011
Later among the works it cites.
R. Bousso and L. Susskind, Phys. Rev. D85
2012
Closest in time.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…