87 citations · 98 across the 7 of their papers we have counts for
8 papers
Quantum computing for heavy-ion physics: near-term status and future prospects
João Barata
We discuss recent advances in applying Quantum Information Science to problems in high-energy nuclear physics. After outlining key developments, open challenges, and emerging conne…
Causal perturbation theory and scattering amplitudes
H. A. C. Grande, J. C. A Barata
Motivated by the limited interaction between the mathematical physics community and theoretical physicists - particularly in high-energy theory - we present a computation that is t…
A categorical view of Bell's inequalities in quantum field theory
Rafael Grossi, João C. A. Barata
We propose a generalization of the description of Bell's inequalities in algebraic quantum field theory (AQFT) to the context of locally covariant quantum field theory (LCQFT). We…
Scattering Processes from Quantum Simulation Algorithms for Scalar Field Theories
Andrew Hardy, Priyanka Mukhopadhyay, M. Sohaib Alam +8
We provide practical simulation methods for scalar field theories on a quantum computer that yield improved asymptotics as well as concrete gate estimates for the simulation and ph…
Quantum to classical parton evolution in the QGP
João Barata, Jean-Paul Blaizot, Yacine Mehtar-Tani
We study the time evolution of the density matrix of a high energy quark in the presence of a dense QCD background that is modeled as a stochastic Gaussian color field. At late tim…
Time of ocurrence observables: expanding to other symmetries
V. Cavalheri Pereira, J. C. A. Barata
Recent works have proposed the use of the formalism of Positive Operator Valued Measures to describe time measurements in quantum mechanics. This work aims to expand on the work do…
Pure and mixed states
J. C. A. Barata, M. Brum, V. Chabu +1
We present a review on the notion of pure states and mixtures as mathematical concepts that apply for both classical and quantum physical theories, as well as for any other theory…
Strong Coupling Theory of Two Level Atoms in Periodic Fields
J. C. A. Barata, W. F. Wreszinski
We present a new convergent strong coupling expansion for two-level atoms in external periodic fields, free of secular terms. As a first application, we show that the coherent dest…