Quick search
Advanced search in
Field to searchTerm
Add rule
Filters (6)
Download Results
12 research outcomes, page 1 of 2
  • publication . Article . Preprint . 2016
    Open Access English
    Authors:
    Johnson, Matthew C.; Wainwright, Carroll L.; Aguirre, Anthony; Peiris, Hiranya V.;
    Publisher: Institute of Physics Publishing/SISSA
    Project: NSF | Programs on Critical Prob... (1066293), EC | COSMICDAWN (306478)

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

  • publication . Article . Preprint . Other literature type . 2018
    Open Access English
    Authors:
    Braden, Jonathan; Johnson, Matthew C.; Peiris, Hiranya V.; Weinfurtner, Silke;
    Persistent Identifiers
    Publisher: SpringerOpen
    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

    Add to ORCID
  • publication . Article . Preprint . Other literature type . 2015
    Open Access English
    Authors:
    Braden, JonathanCITA, University of Toronto, 60 St. George Street, Toronto, ON, M5S 3H8, Canada; Bond, J. Richard(CITA, University of Toronto, 60 St. George Street, Toronto, ON, M5S 3H8, Canada); Mersini-Houghton, Laura(Department of Physics and Astronomy, University of North Carolina-Chapel Hill, 1 Phillips Hall, 120 E. Cameron Avenue, Chapel Hill, NC 27599-3255, U.S.A.);
    Publisher: The University of North Carolina at Chapel Hill University Libraries
    Project: EC | COSMICDAWN (306478), NSERC

    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...

    Add to ORCID
  • publication . Article . 2013
    Open Access
    Authors:
    Stephen M. Feeney; Hiranya V. Peiris; Licia Verde;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: EC | COSMICDAWN (306478), EC | PHYS.LSS (240117)

    It has been suggested that recent cosmological and flavor-oscillation data favor the existence of additional neutrino species beyond the three predicted by the Standard Model of particle physics. We apply Bayesian model selection to determine whether there is indeed any...

    Add to ORCID
  • publication . Article . Other literature type . 2019
    Open Access English
    Authors:
    Braden, Jonathan; Johnson, Matthew C.; Peiris, Hiranya V.; Pontzen, Andrew; Weinfurtner, Silke;
    Persistent Identifiers
    Publisher: APS
    Project: EC | COSMICDAWN (306478)

    We introduce a new picture of vacuum decay which, in contrast to existing semiclassical techniques, provides a real-time description and does not rely on classically forbidden tunneling paths. Using lattice simulations, we observe vacuum decay via bubble formation by ge...

    Add to ORCID
  • publication . Article . 2013
    Open Access
    Authors:
    Hiranya V. Peiris; Richard Easther; Raphael Flauger;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: EC | COSMICDAWN (306478), NSF | Probing Fundamental Physi... (0855425), NSF | CAREER: Strings on the Ho... (0645435)

    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...

    Add to ORCID
  • publication . Article . 2014
    Open Access
    Authors:
    Stephen M. Feeney; Domenico Marinucci; Jason D. McEwen; Hiranya V. Peiris; Benjamin D. Wandelt; Valentina Cammarota;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: ANR | SUPER (ANR-11-IDEX-0004), EC | COSMICDAWN (306478), EC | PASCAL (277742)

    Sparse inpainting techniques are gaining in popularity as a tool for cosmological data analysis, in particular for handling data which present masked regions and missing observations. We investigate here the relationship between sparse inpainting techniques using the sp...

    Add to ORCID
  • publication . Article . 2013
    Open Access
    Authors:
    Licia Verde; Stephen M. Feeney; Daniel J. Mortlock; Hiranya V. Peiris;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: EC | PHYS.LSS (240117), EC | COSMICDAWN (306478)

    We use Bayesian model comparison to determine whether extensions to Standard-Model neutrino physics -- primarily additional effective numbers of neutrinos and/or massive neutrinos -- are merited by the latest cosmological data. Given the significant advances in cosmic m...

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

    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...

    Add to ORCID
  • publication . Other literature type . Article . Preprint . 2014
    Open Access
    Authors:
    Wainwright, Carroll L.; Johnson, Matthew C.; Aguirre, Anthony; Peiris, Hiranya V.;
    Persistent Identifiers
    Publisher: IOP Publishing
    Project: EC | COSMICDAWN (306478)

    Comment: 35 pages, 17 figures

    Add to ORCID
12 research outcomes, page 1 of 2