Resolving the vicinity of supermassive black holes with gravitational microlensing
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Block copolymer inverse micelles from polystyrene-block-poly-2-vinylpyridine (PS-b-P2VP) deposited as monolayer films onto surfaces show responsive behavior and are reversibly switchable between two states of different topography and surface chemistry. The ...
We explore the connection between D-branes and black holes in one particular case: a D3-brane compactified to four dimensions on T-6/Z(3). Using the D-brane boundary state description, we show the equivalence with a double extremal N = 2 black hole solutio ...
We calculate binding energies of shallow acceptors in GaAs/Ga1-xAlxAs quantum wells (QWs) for varying well widths. Variational calculations are performed in the framework of a multiband effective-mass theory, which accounts for the mixing between heavy and ...
We give evidence in favour of a string/black hole transition in the case of BPS fundamental string states of the Heterotic string. Our analysis goes beyond the counting of degrees of freedom and considers the evolution of dynamical quantities in the proces ...
We consider the doped Rokhsar-Kivelson quantum dimer model on the triangular lattice with one mobile hole (monomer) at the Rokhsar-Kivelson point. The motion of the hole is described by two branches of excitations: the hole may either move with or without ...
In the rod and hole paradox as described by Rindler (1961 Am. J. Phys. 29 365–6) ('length contraction paradox'), a rigid rod moves at high speed over a table towards a hole of the same size. A bystander expects the rod to fall into the hole, but a co-movin ...
We show how an extremal Reissner-Nordstrom black hole can be obtained by wrapping a dyonic D3-brane on a Calabi-Yau manifold. In the orbifold limit T-6/Z(3), We explicitly show the correspondence between the solution of the supergravity equations of motion ...
Raman scattering by coupled LO phonon-plasmon modes in p-type GaN layers has been measured for different hole densities up to 3 x 10(18) cm(-3) Both axial and planar coupled modes were clearly observed. The breakdown of usual selection rules for the planar ...
Pyramidal, site-controlled InGaAs/AlGaAs quantum dots (QDs) are studied by micro-photoluminescence (PL) spectroscopy in a magnetic field. The light-hole (LH) excitonic transitions exhibit diamagnetic shifts similar to those of their heavy-hole (HH) counter ...
The fine structure of the copper L3 edge in fcc Cu was simulated using a full potential linearised augmented plane wave method (WIEN97). The computations were based on a single cell-model by introducing a partial core hole and on a 2 x 2 x 1 super-cell-mod ...