Edge exponents in work statistics out of equilibrium and dynamical phase transitions from scattering theory in one-dimensional gapped systems

Article

关键词: TRUNCATED CONFORMAL SPACE;    FREE-ENERGY DIFFERENCES;    QUANTUM-FIELD THEORIES;    BOUNDARY;    STATES;    RELAXATION;   

DOI  :  10.1103/PhysRevB.92.235433

来源: SCIE

【 摘 要 】

I discuss the relationship between edge exponents in the statistics of work done, dynamical phase transitions, and the role of different kinds of excitations appearing when a nonequilibrium protocol is performed on a closed, gapped, one-dimensional system. I show that the edge exponent in the probability density function of the work is insensitive to the presence of interactions and can take only one of three values: +1/2, -1/2, and -3/2. It also turns out that there is an interesting interplay between spontaneous symmetry breaking or the presence of bound states and the exponents. For instantaneous global protocols, I find that the presence of the one-particle channel creates dynamical phase transitions in the time evolution.

【 授权许可】

Free