“Time” in Group Dynamics

Time-Dependent Real-Space Renormalization Group Method

In this paper, using the tight-binding model, we extend the real-space renormalization group method to time-dependent Hamiltonians. We drive the time-dependent recursion relations for the renormalized tight-binding Hamiltonian by decimating selective sites of lattice iteratively. The formalism is then used for the calculation of the local density of electronic states for a one dimensional quant...

Real-time dynamics in spin-1/2 chains with adaptive time-dependent density matrix renormalization group.

We investigate the influence of different interaction strengths and dimerizations on the magnetization transport in antiferromagnetic spin 1/2 XXZ chains. We focus on the real-time evolution of the inhomogeneous initial state |upward arrow... upward arrow downward arrow... downward arrow > in using the adaptive time-dependent density-matrix renormalization group (adaptive t-DMRG). Time scales a...

Group dynamics.

Online discussion group sustainability: Investigating the interplay between structural dynamics and social dynamics over time

Special Issue Online discussion group sustainability: Investigating the interplay between structural dynamics and social dynamics over time Catherine Ridings Lehigh University [email protected] Molly Wasko Florida State University [email protected] Online discussion groups have become an increasingly popular way to create social networks where individuals congregate electronically to share ad...

Dynamics of a discrete-time plant-herbivore model