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Sökning: WFRF:(Tasinato Gianmassimo)

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1.
  • Arun, K. G., et al. (författare)
  • New horizons for fundamental physics with LISA
  • 2022
  • Ingår i: Living Reviews in Relativity. - : Springer Science and Business Media LLC. - 1433-8351 .- 2367-3613. ; 25:1
  • Forskningsöversikt (refereegranskat)abstract
    • The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. In this white paper, the Fundamental Physics Working Group of the LISA Consortium summarizes the current topics in fundamental physics where LISA observations of gravitational waves can be expected to provide key input. We provide the briefest of reviews to then delineate avenues for future research directions and to discuss connections between this working group, other working groups and the consortium work package teams. These connections must be developed for LISA to live up to its science potential in these areas.
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2.
  • Gregory, Ruth, et al. (författare)
  • Lifshitz solutions in supergravity and string theory
  • 2010
  • Ingår i: Journal of High Energy Physics (JHEP). - 1126-6708 .- 1029-8479. ; :12, s. 047-
  • Tidskriftsartikel (refereegranskat)abstract
    • We derive Lifshitz configurations in string theory for general dynamical exponents z >= 1. We begin by obtaining simple Li x Omega solutions to supergravities in diverse dimensions, with Omega a compact constant curvature manifold. Then we uplift the solutions to ten dimensions, providing configurations that correspond to warped compactifications in Type II string theory.
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3.
  • Tasinato, Gianmassimo, et al. (författare)
  • Loop corrections and a new test of inflation
  • 2013
  • Ingår i: Physical Review D. - 1550-7998 .- 1550-2368. ; 87:4, s. 043512-
  • Tidskriftsartikel (refereegranskat)abstract
    • Inflation is the leading paradigm for explaining the origin of primordial density perturbations. However many open questions remain, in particular whether one or more scalar fields were present during inflation and how they contributed to the primordial density perturbation. We propose a new observational test of whether multiple fields or only one (not necessarily the inflaton) generated the perturbations. We show that our test, relating the bispectrum and trispectrum, is protected against loop corrections at all orders, unlike previous relations. DOI: 10.1103/PhysRevD.87.043512
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  • Resultat 1-3 av 3

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