Zobrazeno 1 - 10
of 635
pro vyhledávání: '"P., Pajer"'
We revisit axion monodromy inflation in the context of UV-complete theories and uncover a novel sensitivity of cosmological observables to heavy fields with masses far above the Hubble scale, such as the moduli of flux compactifications. By studying
Externí odkaz:
http://arxiv.org/abs/2412.05762
Physical theories have a limited regime of validity and hence must be accompanied by a breakdown diagnostic to establish when they cease to be valid as parameters are varied. For perturbative theories, estimates of the first neglected order offer val
Externí odkaz:
http://arxiv.org/abs/2410.23709
Autor:
Lee, Mang Hei Gordon, Pajer, Enrico, Giroux, Mathieu, Hannesdottir, Holmfridur S., Mizera, Sebastian, Pasiecznik, Celina
By directly probing the initial conditions of our universe, cosmological surveys offer us a unique observational handle on quantum field theory in curved spacetime with dynamical gravity and might even allow us to glean information about a full theor
Externí odkaz:
http://arxiv.org/abs/2410.00227
We study properties of boundary conditions (BCs) in theories with categorical (or non-invertible) symmetries. We describe how the transformation properties, or (generalized) charges, of BCs are captured by topological BCs of Symmetry Topological Fiel
Externí odkaz:
http://arxiv.org/abs/2409.02166
Autor:
Bhardwaj, Lakshya, Pajer, Daniel, Schafer-Nameki, Sakura, Tiwari, Apoorv, Warman, Alison, Wu, Jingxiang
We use the Symmetry Topological Field Theory (SymTFT) to study and classify gapped phases in (2+1)d for a class of categorical symmetries, referred to as being of bosonic type. The SymTFTs for these symmetries are given by twisted and untwisted (3+1)
Externí odkaz:
http://arxiv.org/abs/2408.05266
The field theoretic wavefunction in cosmological spacetimes has received much attention as a fundamental object underlying the generation of primordial perturbations in our universe. Assuming an initial Bunch-Davies state, unitary time evolution impl
Externí odkaz:
http://arxiv.org/abs/2407.06258
Publikováno v:
JHEP 10 (2024) 248
In our quest to understand the generation of cosmological perturbations, we face two serious obstacles: we do not have direct information about the environment experienced by primordial perturbations during inflation, and our observables are practica
Externí odkaz:
http://arxiv.org/abs/2404.15416
We discuss (1+1)d gapless phases with non-invertible global symmetries, also referred to as categorical symmetries. This includes gapless phases showing properties analogous to gapped symmetry protected topological (SPT) phases, known as gapless SPT
Externí odkaz:
http://arxiv.org/abs/2403.00905
Autor:
Donath, Yaniv, Pajer, Enrico
Cosmological correlators, the natural observables of the primordial universe, have been extensively studied in the past two decades using the in-in formalism pioneered by Schwinger and Keldysh for the study of dissipative open systems. Ironically, mo
Externí odkaz:
http://arxiv.org/abs/2402.05999
The squeezed limit of the primordial curvature bispectrum is an extremely sensitive probe of new physics and encodes information about additional fields active during inflation such as their masses and spins. In the conventional setup, additional fie
Externí odkaz:
http://arxiv.org/abs/2401.11009