76 citations · 1.3k across the 130 of their papers we have counts for
14 papers · 1 filter
Exact Lattice Identities and Continuum-Limit Dyson--Schwinger Equations for Yang-Mills Theory
Arpan Chatterjee, Marco Frasca, Anish Ghoshal +1
Starting from SU(N) on the lattice, we give a rigorous derivation of the Dyson--Schwinger equations in the continuum limit. We formulate the Dyson--Schwinger identities for the lat…
Mass gap in non-perturbative quadratic gravity via Dyson-Schwinger
Sayantan Choudhury, Marco Frasca, Anish Ghoshal
We apply in a simple model derived from quadratic gravity the technique of Dyson-Schwinger equations to solve for its corresponding quantum theory. Particularly, we…
Anomalies in String-inspired Non-local Extensions of QED
Fayez Abu-Ajamieh, Pratik Chattopadhyay, Anish Ghoshal +1
We investigate anomalies in the class of non-local field theories that have been proposed as an ultraviolet completion of 4-D Quantum Field Theory (QFT) with generalizing the kinet…
Yukawa theory in non-perturbative regimes: towards confinement, exact -function and conformal phase
Marco Frasca, Anish Ghoshal
We study possible hints towards confinement in a Z-invariant Yukawa system with massless fermions and a real scalar field in the strongly-coupled regime. Using the tools develo…
Effective potential in non-perturbative gauge theories
Gianluca Calcagni, Marco Frasca, Anish Ghoshal
We consider a formalism to describe the false-vacuum decay of a scalar field in gauge theories in non-perturbative regimes. We find that the larger the gauge coupling with respect…
Confining complex ghost degrees of freedom
Marco Frasca, Anish Ghoshal, Alexey S. Koshelev
We show a theorem proving that a non-local bosonic field upon a covariant interaction with a confining gauge field undergoes the confinement of its degrees of freedom present in th…