MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Cosmology with orthogonal nilpotent superfields

Author(s)
Ferrara, Sergio; Kallosh, Renata; Thaler, Jesse
Thumbnail
DownloadPhysRevD.93.043516.pdf (256.0Kb)
PUBLISHER_CC

Publisher with Creative Commons License

Creative Commons Attribution

Terms of use
Creative Commons Attribution http://creativecommons.org/licenses/by/3.0
Metadata
Show full item record
Abstract
We study the application of a supersymmetric model with two constrained supermultiplets to inflationary cosmology. The first superfield S is a stabilizer chiral superfield satisfying a nilpotency condition of degree 2, S[superscript 2] = 0. The second superfield Φ is the inflaton chiral superfield, which can be combined into a real superfield B ≡ 1/2i(Φ - [bar over Φ). The real superfield B is orthogonal to S, SB = 0, and satisfies a nilpotency condition of degree 3, B[superscript 3] = 0. We show that these constraints remove from the spectrum the complex scalar sgoldstino, the real scalar inflaton partner (i.e. the “sinflaton”), and the fermionic inflatino. The corresponding supergravity model with de Sitter vacua describes a graviton, a massive gravitino, and one real scalar inflaton, with both the goldstino and inflatino being absent in unitary gauge. We also discuss relaxed superfield constraints where S[superscript 2] = 0 and S[bar over Φ] is chiral, which removes the sgoldstino and inflatino, but leaves the sinflaton in the spectrum. The cosmological model building in both of these inflatino-less models offers some advantages over existing constructions.
Date issued
2016-02
URI
http://hdl.handle.net/1721.1/101156
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Ferrara, Sergio, Renata Kallosh, and Jesse Thaler. "Cosmology with orthogonal nilpotent superfields." Phys. Rev. D 93, 043516 (February 2016).
Version: Final published version
ISSN
1550-7998
1550-2368

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.