4 citations · 9 across the 7 of their papers we have counts for
7 papers
Dynamics of discrete spacetimes with Quantum-enhanced Markov Chain Monte Carlo
Stuart Ferguson, Arad Nasiri, Petros Wallden
Quantum algorithms offer the potential for significant computational advantages; however, in many cases, it remains unclear how these advantages can be practically realized. Causal…
Covariant diffusion and drift of the stochastic GW background with LISA
Giorgio Mentasti, Arad Nasiri
We study the covariant diffusion and drift of massless particles on the light cone within the context of quantum gravity phenomenology. Unlike modified dispersion relations that vi…
Stochastic dark matter: Covariant Brownian motion from Planckian discreteness
Emma Albertini, Arad Nasiri, Emanuele Panella
Quantum gravity has long remained elusive from an observational standpoint. Developing effective cosmological models motivated by the fundamental aspects of quantum gravity is cruc…
In-in correlators and scattering amplitudes on a causal set
Emma Albertini, Fay Dowker, Arad Nasiri +1
Causal set theory is an approach to quantum gravity in which spacetime is fundamentally discrete at the Planck scale and takes the form of a Lorentzian lattice, or "causal set", fr…
Aspects of Everpresent (II): Cosmological Tests of Current Models
Santanu Das, Arad Nasiri, Yasaman K. Yazdi
This paper investigates Everpresent , a stochastic dark energy model motivated by causal set theory and unimodular gravity, and confronts it with two key observational data sets…
Aspects of Everpresent (I): A Fluctuating Cosmological Constant from Spacetime Discreteness
Santanu Das, Arad Nasiri, Yasaman K. Yazdi
We provide a comprehensive discussion of the Everpresent cosmological model arising from fundamental principles in causal set theory and unimodular gravity. In this framework t…
Synge's world function applied to causal diamonds and causal sets
Arad Nasiri
One of the major tasks in discrete theories of gravity, including causal set theory, is to discover how the combinatorics of the underlying discrete structure recovers various geom…