We propose a world-sheet realization of the zigzag-invariant bosonic and fermionic strings as a perturbed Wess-Zumino-Novikov-Witten model at large negative level k on a group manifold G coupled to 2D gravity. In the large k limit the zigzag symmetry can be obtained as a result of a self-consistent solution of the gravitationally dressed RG equation. The only solution found for simple group is ...

Abstract The IEEE 802.16 of standards is known as Worldwide Interoperability for Microwave Access. IEEE 802.16 standard defines Wireless metropolitan area network (MAN). It has been designed to provide high data rate communication in metropolitan area wireless networks. For broadband wireless access is employed for high speed and low cost, in which is easy to deploy, or provides a better altern...

In this paper, we show that Krypton atoms form a commensurate solid (CS) phase with a fractional coverage of one krypton atom per every four carbons on zigzag carbon nanotubes. This is a unique phase, different from the √ 3×√3R30◦ CS monolayer formed on graphite, which has a lower coverage of one krypton atom per every six carbons. Our prediction disagreeswith experiments that observe in nanotu...

We study the transport of paramagnetic colloidal particles on a patterned magnetic substrate with kinetic Monte Carlo and Brownian dynamics computer simulations. The planar substrate is decorated with point dipoles in either parallel or zigzag stripe arrangements and exposed to an additional external magnetic field that oscillates in time. For the case of parallel stripes we find that the magni...