3 citations · 6 across the 7 of their papers we have counts for
8 papers
Fermionic Anomalies of Finite Symmetries on Lattices
Ameya Chavda, Ryohei Kobayashi
We develop a lattice characterization of fermionic 't Hooft anomalies of finite internal symmetries in one and two spatial dimensions, formulated in terms of obstructions to symmet…
Algebras of order parameters in one-dimensional spin systems
Ameya Chavda, Clement Delcamp, Alex Turzillo +1
We study order parameters in one-dimensional quantum lattice models with finite invertible or non-invertible symmetry. We investigate what properties a string operator must satisfy…
The Unitary Architecture of Renormalization
Ameya Chavda, Daniel McLoughlin, Sebastian Mizera +1
We set up a bootstrap problem for renormalization. Working in the massless four-dimensional O model and the theory, we prove that unitarity leads to all-loop recursion…
Hadamard tails from flat-space perturbation theory
Ameya Chavda, Alberto Nicolis, Alessandro Podo +1
The short-distance singular structure of the two-point function of a free scalar field in curved spacetime has a universal behavior that characterizes well-behaved states (called H…
The Unitarity Flow Conjecture: An On-shell Approach to the Renormalization Group
Ameya Chavda, Daniel McLoughlin, Sebastian Mizera +1
We propose that the broad architecture of the renormalization group flow in quantum field theories is, at least in part, fixed by unitarity. The precise statement is summarized in…
The impact of initial conditions on quasi-normal modes
Ameya Chavda, Macarena Lagos, Lam Hui
This study investigates the influence of initial conditions on the evolution and properties of linear quasi-normal modes (QNMs). Using a toy model in which the quasi-normal mode ca…
Fractonic Coset Construction for Spontaneously Broken Translations
Ameya Chavda, Daniel Naegels, John Staunton
We study the homogeneous breaking of spatial translation symmetry concomitantly with the spontaneous breaking of other internal and spacetime symmetries, including dilations. We us…
Kinematical and dynamical aspects of ghost-matter cosmologies
Ameya Chavda, John D. Barrow, Christos G. Tsagas
We consider the kinematical and dynamical evolution of Friedmann universes with a mixture of non-interacting matter and a ghost-like field, in a scenario analogous to that advocate…