38,318 research outputs found
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
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