Zobrazeno 1 - 10
of 29
pro vyhledávání: '"James Bonifacio"'
Autor:
James Bonifacio, Kurt Hinterbichler
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-37 (2024)
Abstract We study extended shift symmetries that arise for fermionic fields on anti-de Sitter (AdS) space and de Sitter (dS) space for particular values of the mass relative to the curvature scale. We classify these symmetries for general mixed-symme
Externí odkaz:
https://doaj.org/article/349b487ddc6c4664bad0590e8509122b
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 6, Pp 1-46 (2023)
Abstract We compute the tree-level late-time graviton four-point correlation function, and the related quartic wavefunction coefficient, for Einstein gravity in de Sitter spacetime. We derive this result in several ways: by direct calculation, using
Externí odkaz:
https://doaj.org/article/e7617ccaf9ac406caee57565f28cb0d5
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-22 (2022)
Abstract The special galileon and Dirac-Born-Infeld (DBI) theories are effective field theories of a single scalar field that have many interesting properties in flat space. These theories can be extended to all maximally symmetric spaces, where thei
Externí odkaz:
https://doaj.org/article/4a4c08d12dbe4b038eab43fa53f0c64c
Autor:
James Bonifacio
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-19 (2022)
Abstract The eigenvalues of the Laplace-Beltrami operator and the integrals of products of eigenfunctions and holomorphic s-differentials satisfy certain consistency conditions on closed hyperbolic surfaces. These consistency conditions can be derive
Externí odkaz:
https://doaj.org/article/feb3a330c3974942a58edd4f7affe7f1
Autor:
James Bonifacio
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 2, Pp 1-31 (2022)
Abstract The eigenvalues of the Laplace-Beltrami operator and the integrals of products of eigenfunctions must satisfy certain consistency conditions on compact Riemannian manifolds. These consistency conditions are derived by using spectral decompos
Externí odkaz:
https://doaj.org/article/b410803959654f6597933a288c50c71b
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-33 (2021)
Abstract Our understanding of quantum correlators in cosmological spacetimes, including those that we can observe in cosmological surveys, has improved qualitatively in the past few years. Now we know many constraints that these objects must satisfy
Externí odkaz:
https://doaj.org/article/f5a41fea09c043819c529dc6a94ba8e1
Autor:
James Bonifacio, Kurt Hinterbichler
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-39 (2020)
Abstract A compact Riemannian manifold is associated with geometric data given by the eigenvalues of various Laplacian operators on the manifold and the triple overlap integrals of the corresponding eigenmodes. This geometric data must satisfy certai
Externí odkaz:
https://doaj.org/article/605bf142cbce4d8bb1d69a052d254756
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 7, Pp 1-40 (2020)
Abstract Scalar effective field theories with enhanced soft limits behave in many ways like gauge theories and gravity. In particular, symmetries fix the structure of interactions and the tree-level S-matrix in both types of theories. We explore how
Externí odkaz:
https://doaj.org/article/77ca08ddf3b94c18b886aeb921f6962f
Autor:
James Bonifacio, Kurt Hinterbichler
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-50 (2019)
Abstract We study the perturbative unitarity of scattering amplitudes in general dimensional reductions of Yang-Mills theories and general relativity on closed internal manifolds. For the tree amplitudes of the dimensionally reduced theory to have th
Externí odkaz:
https://doaj.org/article/6fb608a45436418c879251f9049c6f79
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 9, Pp 1-32 (2019)
Abstract We study interacting massive spin-1 theories in de Sitter (dS) and anti-de Sitter (AdS) space that possess shift symmetries parametrized by (A)dS Killing vectors. We show how they emerge from the massless limit of massive spin-2 theories on
Externí odkaz:
https://doaj.org/article/abd93b94d4bf45db9ed48deaab00b663