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The unification of gravity with the three other forces has been an impor-tant goal of physics for some time now, because a quantum theory of gravity is necessary to explain the universe at its earlies...
Markovian embedding of fractional superdiffusion
Markovian embedding fractional superdiffusion
2010/11/22
The Fractional Langevin Equation (FLE) describes a non-Markovian Generalized Brownian Motion with long time persistence (superdiffusion), or anti-persistence (subdiffusion) of both velocity-velocity c...
The CHASE laboratory search for chameleon dark energy
CHASE laboratory chameleon dark energy
2011/1/4
A scalar field is a favorite candidate for the particle responsible for dark energy. However, few theoretical means exist that can simultaneously explain the observed acceleration of the Universe and ...
Holographic Symmetry-Breaking Phases in AdS$_3$/CFT$_2$
Holographic Symmetry-Breaking Phases AdS$_3$/CFT$_2$
2010/12/21
In this note we study the symmetry-breaking phases of 3D gravity coupled to matter. In particular, we consider black holes with scalar hair as a model of symmetry-breaking phases of a strongly coupled...
A New Entropic Force Scenario and Holographic Thermodynamics
Entropic Force Scenario Holographic Thermodynamics
2010/12/21
We propose a new holographic program of gravity in which we introduce a surface stress tensor.
Our proposal differs from Verlinde’s in several aspects. First, we use an open or a closed screen, a tem...
Entropy of extremal black holes from entropy of quasiblack holes
quasiblack holes black holes extremal horizon entropy thermodynamics
2010/12/20
The entropy of extremal black holes (BHs) is obtained using a continuity argument from extremal quasiblack holes (QBHs). It is shown that there exists a smooth limiting transition in which (i) the sys...
Normal state resistivity of Ba$_{1-x}$K$_x$Fe$_2$As$_2$: evidence for multiband strong-coupling behavior
Normal state resistivity multiband strong-coupling behavior
2010/11/19
We present theoretical analysis of the normal state resistivity in multiband superconductors in the framework of Eliashberg theory. The results are compared with measurements of the temperature depend...
Observation of novel interference patterns in Bi2-xFexTe3+d by Fourier transform scanning tunneling spectroscopy
novel interference patterns tunneling spectroscopy
2010/11/25
In topological insulators (TI), strong spin-orbit coupling results in non-trivial scattering
processes of the surface states, whose effects include suppressed back scattering1, 2, 3, 4 weak anti-loca...
Anomalous Soft Photons associated with Hadron Production in String Fragmentation
String fragmentation soft photon production hadron production
2011/1/6
The bosonized QCD2+QED2 system for quarks with two flavors contains QCD2 and QED2 bound states, with an isoscalar photon at about 25 MeV and an isovector (I=1,I3=0) photon at about 44 MeV. Consequentl...
Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
Inflation in Entropic Cosmology Primordial Perturbations non-Gaussianities
2010/12/21
We investigate thermal inflation in double-screen entropic cosmology. We find that its realization is general, resulting from the system evolution from non-equilibrium to equilibrium. Furthermore,goin...
The prospects for detecting a candidate supersymmetric dark matter particle at the LHC are reviewed, and compared with the prospects for direct and indirect searches for astrophysical dark matter, on ...
Theory of the asymmetric ripple phase in achiral lipid membranes
Theory asymmetric ripple phase achiral lipid membranes
2010/11/23
We present a phenomenological theory of phase transitions in achiral lipid membranes in terms of two coupled order parameters – a scalar order parameter describing lipid chain melting, and a vector or...
Entropic Time
Entropic Time
2010/12/21
The formulation of quantum mechanics within the framework of entropic dynamics includes several new elements. In this paper we concentrate on one of them: the implications for the theory of time. Entr...
Correspondence between entropy-corrected holographic and Gauss-Bonnet dark energy models
Correspondence between entropy-corrected holographic Gauss-Bonnet dark energy models
2010/12/20
In the present work we investigate the cosmological implications of the entropy-corrected
holographic dark energy (ECHDE) density in the Gauss-Bonnet framework. This is motivated
from the loop quant...
Information, fidelity, and reversibility in photodetection processes
Information fidelity reversibility photodetection processes
2010/11/8
Four types of photon counters are discussed in terms of information, fidelity, and physical reversibility: conventional photon counter, quantum counter, and their quantum nondemolition (QND) versions...