65 citations · 146 across the 13 of their papers we have counts for
12 papers · 1 filter
The Phases of the Scalar S-Matrix Island
Joan Elias Miro, Andrea Guerrieri, Mehmet Asim Gumus
The two-to-two four-dimensional scattering amplitude of identical scalars obeys rigorous two-sided non-perturbative bounds derived via the modern numerical S-matrix bootstrap. Thes…
Thermodynamics from the S-matrix reloaded: emergent thermal mass
Pietro Baratella, Joan Elias Miro
The formalism of Dashen, Ma and Bernstein (DMB) expresses the thermal partition function of a system in terms of the S-matrix operator, roughly $Z(β) \propto \int dE\, e^{-βE}\,\te…
A Geometric View on Crossing-Symmetric Dispersion Relations
Joan Elias Miro, Andrea Guerrieri, Mehmet Asim Gumus +1
We introduce a general framework for constructing dispersion relations using crossing-symmetric variables, leading to infinitely many distinct representations of the 2-to-2 scatter…
Flowing from the Ising Model on the Fuzzy Sphere to the 3D Lee-Yang CFT
Joan Elias Miro, Olivier Delouche
We employ the Fuzzy Sphere regulator to study the 3D Lee-Yang CFT. The model is defined by deforming the Ising model on the Fuzzy Sphere via a purely imaginary longitudinal magneti…
Testing the RG-flow with Hamiltonian Truncation
Olivier Delouche, Joan Elias Miro, James Ingoldby
Hamiltonian Truncation (HT) methods provide a powerful numerical approach for investigating strongly coupled QFTs. In this work, we develop HT techniques to analyse a specific Reno…
Thermodynamics from the S-matrix reloaded, with applications to QCD and the confining Flux Tube
Pietro Baratella, Joan Elias Miro, Emanuele Gendy
Over the past decade and more, S-matrix-based calculational methods have experienced a resurgence, proving to be both an elegant and powerful tool for extracting physical quantitie…
Hamiltonian Truncation Crafted for UV-divergent QFTs
Olivier Delouche, Joan Elias Miro, James Ingoldby
We develop the theory of Hamiltonian Truncation (HT) to systematically study RG flows that require the renormalization of coupling constants. This is a necessary step towards makin…
Effective Hamiltonians and Counterterms for Hamiltonian Truncation
Joan Elias Miro, James Ingoldby
We outline a procedure for applying Hamiltonian Truncation to Quantum Field Theories (QFTs) that have UV divergences. To do this, we derive a novel representation of an Effective H…
Bridging Positivity and S-matrix Bootstrap Bounds
Joan Elias Miro, Andrea Guerrieri, Mehmet Asim Gumus
The main objective of this work is to isolate Effective Field Theory scattering amplitudes in the space of non-perturbative two-to-two amplitudes, using the S-matrix Bootstrap. We…
Hamiltonian Truncation with Larger Dimensions
Joan Elias Miro, James Ingoldby
Hamiltonian Truncation (HT) is a numerical approach for calculating observables in a Quantum Field Theory non-perturbatively. This approach can be applied to theories constructed b…
Flux Tube S-matrix Bootstrap
Joan Elias Miro, Andrea L. Guerrieri, Aditya Hebbar +2
We bootstrap the S-matrix of massless particles in unitary, relativistic two dimensional quantum field theories. We find that the low energy expansion of such S-matrices is strongl…
S-matrix bootstrap for resonances
N. Doroud, J. Elias Miró
We study the -matrix element of a generic, gapped and Lorentz invariant QFT in space time dimensions. We derive an analytical bound on the coupling of th…