= Giovanni Jona-Lasinio
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{tag=Physicist}
{wiki}
= G. Jona-Lasinio
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{synonym}
<Giovanni Jona-Lasinio> and <Yoichiro Nambu> proposed a dynamical model of particle <mass> inspired by <superconductivity>. A nonlinear four-fermion interaction produces a self-consistent massive fermionic state, analogous to the gap in a superconductor. The model also produces a massless pseudoscalar bound state in its symmetry limit, interpreted as an idealized <pion>. It demonstrates how both a massive constituent-like excitation and a light collective mode can arise from one interacting theory.<Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. I by Yoichiro Nambu and Giovanni Jona-Lasinio>[1961 abstract: self-energy, generalized Hartree-Fock treatment and idealized massless pion]{ref}
A <physicist> working in <mathematical physics>.<Professional profile of Giovanni Jona-Lasinio>[Independent professional identity]{ref}
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