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13 research outcomes, page 1 of 2
  • publication . Preprint . Article . 2014
    Open Access English
    Authors:
    Layne C. Price; Hiranya V. Peiris; Jonathan Frazer; Richard Easther;
    Persistent Identifiers
    Project: EC | COSMICDAWN (306478), NSF | Programs on Critical Prob... (1066293)

    Comment: 6 pages, 3 figures; v2: discussion updated, matches version accepted by Phys. Rev. Letters

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  • 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

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  • 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...

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  • 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...

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  • publication . Article . Preprint . Other literature type . 2019
    Open Access English
    Authors:
    DES Collaboration; Abbott, T. M. C.; Alarcon, A.; Allam, S.; Andersen, P.; Andrade-Oliveira, F.; Annis, J.; Asorey, J.; Avelino, A.; Avila, S.; ...
    Project: EC | TESTDE (291329), EC | COSMICDAWN (306478), NSF | Collaborative Research: T... (1138766), EC | COGS (240672)

    Comment: 8 pages, 2 figures; v3 matches version accepted by PRL

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  • publication . Article . Other literature type . Preprint . 2019
    Open Access
    Authors:
    Feeney, Stephen M.; Peiris, Hiranya V.; Williamson, Andrew R.; Nissanke, S.M.; Mortlock, Daniel J.; Alsing, Justin; Scolnic, Dan;
    Persistent Identifiers
    Project: EC | COSMICDAWN (306478)

    Comment: Eight pages, four figures. v3: matches version accepted by Physical Review Letters. Code available at https://github.com/sfeeney/hh0

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  • publication . Preprint . Article . 2016
    Open Access English
    Authors:
    Daniela Saadeh; Stephen M. Feeney; Andrew Pontzen; Hiranya V. Peiris; Jason D. McEwen;
    Persistent Identifiers
    Project: EC | COSMICDAWN (306478)

    A fundamental assumption in the standard model of cosmology is that the Universe is isotropic on large scales. Breaking this assumption leads to a set of solutions to Einstein's field equations, known as Bianchi cosmologies, only a subset of which have ever been tested ...

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  • publication . Preprint . Article . 2014
    Open Access English
    Authors:
    Boris Leistedt; Hiranya V. Peiris; Nina Roth;
    Persistent Identifiers
    Project: EC | COSMICDAWN (306478)

    We derive robust constraints on primordial non-Gaussianity (PNG) using the clustering of 800,000 photometric quasars from the Sloan Digital Sky Survey in the redshift range $0.5<z<3.5$. These measurements rely on the novel technique of {\it extended mode projection} to ...

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  • publication . Article . Preprint . 2014
    Open Access English
    Authors:
    Richard Easther; Jonathan Frazer; Hiranya V. Peiris; Layne C. Price;
    Persistent Identifiers
    Project: EC | COSMICDAWN (306478)

    We explore whether multifield inflationary models make unambiguous predictions for fundamental cosmological observables. Focusing on $N$-quadratic inflation, we numerically evaluate the full perturbation equations for models with 2, 3, and $\mathcal{O}(100)$ fields, usi...

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13 research outcomes, page 1 of 2