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String Axiverse

Abstract:

String theory suggests the simultaneous presence of many ultralight axions possibly populating each decade of mass down to the Hubble scale 10^-33eV. Conversely the presence of such a plenitude of axions (an "axiverse") would be evidence for string theory, since it arises due to the topological complexity of the extra-dimensional manifold and is ad hoc in a theory with just the four familiar dimensions. We investigate how upcoming astrophysical experiments will explore the existence of such a...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.81.123530

Authors


Arvanitaki, A More by this author
Dimopoulos, S More by this author
Dubovsky, S More by this author
Kaloper, N More by this author
March-Russell, J More by this author
Journal:
Phys.Rev.D
Volume:
81
Issue:
12
Pages:
123530
Publication date:
2009-05-28
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:9467f2e3-1d17-473e-862e-5fbcea35ae07
Source identifiers:
65295
Local pid:
pubs:65295
Language:
English
Keywords:

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