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196 papers · 1 filter
Spontaneous symmetry breaking and gravity
Kirill Krasnov
Gravity is usually considered to be irrelevant as far as the physics of elementary particles is concerned and, in particular, in the context of the spontaneous symmetry breaking (S…
Field-effect tunneling transistor based on vertical graphene heterostructures
L. Britnell, R. V. Gorbachev, R. Jalil +10
We report a bipolar field effect tunneling transistor that exploits to advantage the low density of states in graphene and its one atomic layer thickness. Our proof-of-concept devi…
Self-tuning and the derivation of the Fab Four
Christos Charmousis, Edmund J. Copeland, Antonio Padilla +1
We have recently proposed a special class of scalar tensor theories known as the Fab Four. These arose from attempts to analyse the cosmological constant problem within the context…
Iteration of quasiregular tangent functions in three dimensions
Alastair N. Fletcher, Daniel A. Nicks
We define a new quasiregular mapping T in three dimensions that generalizes the tangent function on the complex plane and shares a number of its geometric properties. We investigat…
Selective spin wave excitation in ferromagnetic (Ga,Mn)As layers by picosecond strain pulses
M. Bombeck, A. S. Salasyuk, B. A. Glavin +8
We demonstrate selective excitation of a spin wave mode in a ferromagnetic (Ga,Mn)As film by picosecond strain pulses. For a certain range of magnetic fields applied in the layer p…
MAGPHYS: a publicly available tool to interpret observed galaxy SEDs
Elisabete da Cunha, Stephane Charlot, Loretta Dunne +2
We present a simple, physically-motivated model to interpret consistently the emission from galaxies at ultraviolet, optical and infrared wavelengths. We combine this model with a…