When a quantum system initialized in product state is subjected to either coherent or incoherent dynamics, the entropy of any its connected partitions generically increases as function time, signalling inevitable spreading (quantum) information throughout system. Here, we show that, presence continuous symmetries and under ubiquitous experimental conditions, symmetry-resolved inhibited due comp...

We review dynamical mass generation in three and four dimensional Ableian gauge theories. The basic approach analyzed here is to solve Schwinger-Dyson equations in some approximations. In both cases, the coupling has to be larger than a critical value to have dynamical symmetry breaking. In QED4, chiral symmetry is spontaneouly broken if α > αc(≃ π/3) in ladder approximation. The electron becom...