The observable long-time behavior of an isolated many-body system after a quantum quench is considered, i.e., eigenstate (or equilibrium ensemble) some pre-quench Hamiltonian $H$ serves as initial condition which then evolves in time according to post-quench $H_p$. Absence thermalization analytically demonstrated for large class quite common pre- and spin Hamiltonians. main requirement that the...

At the end of 2007, the fi nancial press celebrated that the São Paulo Stock Exchange (Bovespa) had successfully promoted the issue of new shares for 27 companies in that year alone. Abetted by low interest rates and improvements in corporate governance, corporations in Brazil had accomplished what seemed to be an all-time record number of initial public off erings (IPOs) in a single year. 1 Ye...

in practice, obtaining the global optimum for the economic dispatch {bf (ed)}problem with ramp rate limits and prohibited operating zones is presents difficulties. this paper presents a new andefficient method for solving the economic dispatch problem with non-smooth cost functions using afuzzy adaptive genetic algorithm (faga). the proposed algorithm  deals  with the issue ofcontrolling the ex...

The splenic marginal zone is a unique compartment that separates the lymphoid white pulp from the surrounding red pulp. Due to the orchestration of specialized macrophages and B cells flanking a marginal sinus, this compartment plays an important role in uptake of blood-borne Ags and it gives the spleen its specialized function in antibacterial immunity. In this study, we demonstrate that both ...