Critical coupling
= Critical coupling
{title2=$g_c$}
A <critical coupling> is a coupling value at which a <gap equation> first admits a massless solution. Tuning through it can separate symmetric gapped and symmetry-broken phases.
= Critical coupling
{title2=$g_c$}
A <critical coupling> is a coupling value at which a <gap equation> first admits a massless solution. Tuning through it can separate symmetric gapped and symmetry-broken phases.