Direct numerical experiment on measuring of dispersion relation for gravity waves in the presence of condensate

During previous numerical experiments on isotropic turbulence of surface gravity waves we observed formation of the long wave background (condensate). It was shown (Korotkevich, Phys. Rev. Lett. vol. 101 (7), 074504 (2008)), that presence of the condensate changes a spectrum of direct cascade, corresponding to the flux of energy to the small scales from pumping region (large scales). Recent experiments show that the inverse cascade spectrum is also affected by the condensate. In this case mechanism proposed as a cause for the change of direct cascade spectrum cannot work. But inverse cascade is directly influenced by the linear dispersion relation for waves, as a result direct measurement of the dispersion relation in the presence of condensate is necessary. We performed the measurement of this dispersion relation from the direct numerical experiment. The results demonstrate that in the region of inverse cascade influence of the condensate cannot be neglected.Comment: 5 pages, 3 figure

Trailblazer: The Legacy of Bishop Henry M. Turner During the Civil War, Reconstruction, and Jim Crowism

When the Civil War began in 1861, the conflict evoked feelings of pride, patriotism, and hatred in both blacks and whites. As the war raged on, Reverend Henry McNeal Turner ministered to his brethren serving in the United States Colored Troops (USCT), segregated units of the Union Army. Although slavery ended in 1865 with the passage of the Thirteenth Amendment, Lincoln’s plans for Reconstruction died with his assassination. The Ku Klux Klan and ex–Confederates not only regained control of the South but also resisted the federal government’s early attempts at civil rights legislation by intimidating, murdering, and disenfranchising ex–slaves. In response to the brutality and the rise of Jim Crowism, Turner served as a beacon of hope for thousands of freedmen while respectively serving in state and local politics. Bishop Henry M. Turner’s story deserves more attention because he is an overlooked transitional figure in American history. This paper will examine Turner’s contributions to the A.M.E. Church, politics, and civil rights

Annual Kathmandu Conference on Nepal and the Himalaya

The Seventh Annual Kathmandu Conference on Nepal and the Himalaya took place at Hotel Shanker in Kathmandu on 25-27 July 2018

Correlated transport and non-Fermi liquid behavior in single-wall carbon nanotubes

We derive the effective low-energy theory for single-wall carbon nanotubes including the Coulomb interactions among electrons. The generic model found here consists of two spin-1/2 fermion chains which are coupled by the interaction. We analyze the theory using bosonization, renormalization-group techniques, and Majorana refermionization. Several experimentally relevant consequences of the breakdown of Fermi liquid theory observed here are discussed in detail, e.g., magnetic instabilities, anomalous conductance laws, and impurity screening profiles.Comment: 23 pages REVTeX, incl 5 figs, to appear in Europ.Phys.Journal