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13 research outcomes, page 1 of 2
  • publication . Article . Preprint . 2013
    Open Access English
    Authors:
    Hiranya V. Peiris; Richard Easther; Raphael Flauger;
    Persistent Identifiers
    Publisher: IOP PUBLISHING LTD
    Project: EC | COSMICDAWN (306478), NSF | CAREER: Strings on the Ho... (0645435), NSF | Probing Fundamental Physi... (0855425)

    We use cosmic microwave background (CMB) data from the 9-year WMAP release to derive constraints on monodromy inflation, which is characterized by a linear inflaton potential with a periodic modulation. We identify two possible periodic modulations that significantly im...

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  • publication . Article . Preprint . 2018
    Open Access English
    Authors:
    Simeon Bird; Keir K. Rogers; Hiranya V. Peiris; Licia Verde; Andreu Font-Ribera; Andrew Pontzen;
    Persistent Identifiers
    Project: NSF | New Cosmological Constrai... (1817256), EC | BePreSysE (725327), EC | COSMICDAWN (306478), RCUK | UCL Astrophysics Consolid... (ST/R000476/1)

    Comment: 28 pages, 10 figures, accepted to JCAP with minor changes

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  • publication . Preprint . Article . 2016
    Open Access English
    Authors:
    Matthew C. Johnson; Carroll L. Wainwright; Anthony Aguirre; Hiranya V. Peiris;
    Persistent Identifiers
    Project: EC | COSMICDAWN (306478), NSF | Programs on Critical Prob... (1066293)

    Comment: 31 pages, 17 figures. Revised to match published version. Minor clarifications, conclusions unchanged

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  • publication . Article . Other literature type . Preprint . 2015
    Open Access
    Authors:
    Jonathan Braden; J. Richard Bond; Laura Mersini-Houghton;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: NSERC , EC | COSMICDAWN (306478)

    We study collisions between nearly planar domain walls including the effects of small initial nonplanar fluctuations. These perturbations represent the small fluctuations that must exist in a quantum treatment of the problem. In a previous paper, we demonstrated that at...

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  • publication . Article . Preprint . Other literature type . 2014
    Open Access
    Authors:
    Carroll L. Wainwright; Matthew C. Johnson; Hiranya V. Peiris; Anthony Aguirre; Luis Lehner; Steven L. Liebling;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: NSERC , NSF | Collaborative Research: L... (1308621), NSF | Collaborative Research: D... (0969827), EC | COSMICDAWN (306478)

    Comment: 52 pages, 23 figures. A four page summary of methods and results follows the introduction. Version 2 contains minor clarifications and edits to match the version accepted for publication by JCAP. Version 3 fixes a typo in Eq. 3.10 and a typo in the paragraph af...

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  • publication . Article . Other literature type . Preprint . 2018
    Open Access
    Authors:
    Jonathan Braden; Matthew C. Johnson; Hiranya V. Peiris; Silke Weinfurtner;
    Persistent Identifiers
    Publisher: Springer Science and Business Media LLC
    Project: NSF | Programs on Critical Prob... (1066293), EC | COSMICDAWN (306478)

    Comment: v1: 30 pages + appendices, 9 figures, to be submitted to JHEP; v2: Matches published version. Minor revisions, results unchanged

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  • publication . Article . Other literature type . Preprint . 2013
    Open Access English
    Authors:
    Licia Verde; Stephen M. Feeney; Daniel J. Mortlock; Hiranya V. Peiris;
    Persistent Identifiers
    Publisher: IOP PUBLISHING LTD
    Project: EC | PHYS.LSS (240117), EC | COSMICDAWN (306478)

    Comment: 16 pages, 2 figures, small changes to match journal accepted version

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  • publication . Article . Preprint . 2018
    Open Access English
    Authors:
    Keir K. Rogers; Hiranya V. Peiris; Andrew Pontzen; Simeon Bird; Licia Verde; Andreu Font-Ribera;
    Persistent Identifiers
    Publisher: IOP PUBLISHING LTD
    Project: RCUK | UCL Astrophysics Consolid... (ST/R000476/1), NSF | New Cosmological Constrai... (1817256), EC | COSMICDAWN (306478), EC | BePreSysE (725327)

    Comment: 23 pages, 4 figures. Minor changes to match version published in JCAP

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  • publication . Article . Preprint . 2015
    Open Access
    Authors:
    Layne C. Price; Jonathan Frazer; Jiajun Xu; Hiranya V. Peiris; Richard Easther;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: NSF | Programs on Critical Prob... (1066293), EC | COSMICDAWN (306478)

    We present MultiModeCode, a Fortran 95/2000 package for the numerical exploration of multifield inflation models. This program facilitates efficient Monte Carlo sampling of prior probabilities for inflationary model parameters and initial conditions and is the first pub...

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  • publication . Article . Other literature type . Preprint . 2015
    Open Access English
    Authors:
    Layne C. Price; Hiranya V. Peiris; Jonathan Frazer; Richard Easther;
    Publisher: IOP
    Project: EC | STRINGFLATION (647995), EC | COSMICDAWN (306478), NSF | Programs on Critical Prob... (1066293)

    Even simple inflationary scenarios have many free parameters. Beyond the variables appearing in the inflationary action, these include dynamical initial conditions, the number of fields, and couplings to other sectors. These quantities are often ignored but cosmological...

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13 research outcomes, page 1 of 2