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15 papers · 1 filter
Planckian Energy Scattering, Colliding Plane Gravitational Waves and Black Hole Creation
I. Ya. Aref'eva, K. S. Viswanathan, I. V. Volovich
In a series of papers Amati, Ciafaloni and Veneziano and 't Hooft conjectured that black holes occur in the collision of two light particles at planckian energies. In this paper we…
On the screening of the potential between adjoint sources in
Grigorios I. Poulis, Howard D. Trottier
We calculate the potential between adjoint sources in pure gauge theory in three dimensions. We investigate whether the potential saturates at large separations due to the…
Fluctuations and Instabilities of Ferromagnetic Domain Wall pairs in an External Magnetic Field
Hans-Benjamin Braun
Soliton excitations and their stability in anisotropic quasi-1D ferromagnets are analyzed analytically. In the presence of an external magnetic field, the lowest lying topological…
The Anderson Model out of equilibrium: Time dependent perturbations
Matthias H. Hettler, Herbert Schoeller
The influence of high-frequency fields on quantum transport through a quantum dot is studied in the low-temperature regime. We generalize the non crossing approximation for the inf…
The essentially free spectrum of a variety
Alan H. Mekler, Saharon Shelah, Otmar Spinas
We partially prove a conjecture from [MkSh:366] which says that the spectrum of almost free, essentially free, non-free algebras in a variety is either empty or consists of the cla…
A Conformal Field Theory of Extrinsic Geometry of 2-d Surfaces
K. S. Viswanathan, R. Parthasarathy
In the description of the extrinsic geometry of the string world sheet regarded as a conformal immersion of a 2-d surface in , it was previously shown that, restricting to sur…