ar X iv : 0 80 4 . 41 34 v 2 [ as tr o - ph ] 1 1 Se p 20 08 Warming the early Earth - CO 2 reconsidered

ar X iv : 0 80 4 . 41 34 v 1 [ as tr o - ph ] 2 5 A pr 2 00 8 Warming the early Earth - CO 2 reconsidered

Despite a fainter Sun, the surface of the early Earth was mostly ice-free. Proposed solutions to this so-called ”faint young Sun problem” have usually involved higher amounts of greenhouse gases than present in the modern-day atmosphere. However, geological evidence seemed to indicate that the atmospheric CO2 concentrations during the Archaean and Proterozoic were far too low to keep the surfac...

ar X iv : 0 80 1 . 35 64 v 1 [ as tr o - ph ] 2 3 Ja n 20 08 Local Phase Space - Shaped by Chaos ?

ar X iv : 0 80 1 . 36 64 v 1 [ co nd - m at . m tr l - sc i ] 2 3 Ja n 20 08 Universality behind Basquin ’ s law of fatigue

F. Kun, H. A. Carmona, J. S. Andrade Jr., and H. J. Herrmann Department of Theoretical Physics, University of Debrecen, P. O. Box:5, H-4010 Debrecen, Hungary 2 Computational Physics, IfB, HIF, E12, ETH, Hönggerberg, 8093 Zürich, Switzerland 3 Centro de Ciências e Tecnologia, Universidade Estadual do Ceará, 60740-903 Fortaleza, Ceará, Brazil 4 Departamento de F́ısica, Universidade Federal do Cear...

ar X iv : 0 80 9 . 50 92 v 1 [ he p - ph ] 2 9 Se p 20 08 Aspects of Unparticle Physics Arvind Rajaraman

We review some theoretical and experimental issues in unparticle physics, focusing mainly on collider signatures.

ar X iv : 0 80 9 . 42 29 v 1 [ m at h - ph ] 2 4 Se p 20 08 Thermodynamic Limit for Spin Glasses . Beyond the Annealed Bound

Using a correlation inequality of Contucci and Lebowitz for spin glasses, we demonstrate existence of the thermodynamic limit for short-ranged spin glasses, under weaker hypotheses than previously available, namely without the assumption of the annealed bound.