Calculating composite-particle spectra in Hamiltonian formalism and demonstration in 2-flavor QED${}_{1+1\text{d}}$

Etsuko Itou, Akira Matsumoto, Yuya Tanizaki

We consider three distinct methods to compute the mass spectrum of gauge theories in the Hamiltonian formalism: (1) correlation-function scheme, (2) one-point-function scheme, and…