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Conditional phase shift from a quantum dot in a pillar microcavity
quantum dot pillar microcavity Quantum Physics
2010/11/8
Large conditional phase shifts from coupled atom-cavity systems are a key requirement for building a spin photon interface. This in turn would allow the realisation of hybrid quantum information schem...
The phase-shift of isospin-2 pi-pi scattering from lattice QCD
phase-shift isospin-2 pi-pi scattering lattice QCD
2011/1/14
Finite-volume lattice QCD calculations o er the possibility of extracting resonance parameters
from the energy-dependent elastic phase-shift computed using the Luscher technique. In this letter,as a...
Shift of percolation thresholds for epidemic spread between static and dynamic small-world networks
percolation thresholds epidemic spread static dynamic small-world networks
2010/11/16
The aim of the study was to compare the epidemic spread on static and dynamic small-world networks. The network was constructed as a 2-dimensional Watts-Strogatz model (500x500 square lattice with ad...
A subspace shift technique for solving close-to-critical nonsymmetric algebraic Riccati equations
A subspace shift technique close-to-critical nonsymmetric algebraic Riccati equations
2010/11/11
The worst situation in computing the minimal nonnegative solution $X_*$ of a nonsymmetric algebraic Riccati equation $\mathcal R(X)=0$ associated with an M-matrix occurs when the derivative of $\math...
Eigenvalues and eigenfunctions of the Laplacian via inverse iteration with shift
Eigenvalues and eigenfunctions the Laplacian
2010/11/19
In this paper we present an iterative method inspired by the inverse iteration with shift technique of finite linear algebra designed to find the eigenvalues and eigenfunctions of the Laplacian with h...
AC-Stark shift and photoionization of Rydberg atoms in an optical dipole trap
AC-Stark shift photoionization Rydberg atoms
2010/11/12
We have measured the AC-Stark shift of the $14D_{5/2}$ Rydberg state of rubidium 87 in an optical dipole trap formed by a focussed CO$_2$-laser. We find good quantitative agreement with the model of ...
A Shift from Democratic to Tri-bimaximal Neutrino Mixing with Relatively Large theta_{13}
Democratic Tri-bimaximal Neutrino Mixing Relatively Large theta_{13}
2011/1/5
Recent neutrino oscillation data hint that the smallest neutrino mixing angle 13 is possible to lie in the range 5◦ < ∼ 13 <∼12◦.
The dressed atom as binary phase modulator: towards attojoule/edge optical phase-shift keying
The dressed atom binary phase modulator
2010/11/16
Nanophotonic technologies offer great promise for ultra-low power optical signal processing, but relatively few nonlinear-optical phenomena have yet been explored as bases for robust digital modulati...
The pion-pion scattering phase shift is computed using LapH propagators. The LapH method for
computing quark propagators is used to form two-particle correlation functions with a number of
different...
Lamb Shift for static atoms outside a Schwarzschild black hole
Lamb Shift static atoms Schwarzschild black hole
2010/12/21
We study, by separately calculating the contributions of vacuum fluctuations and radiation
reaction to the atomic energy level shift, the Lamb shift of a static two-level atom interacting with real m...
On the finite-dimensional marginals of shift-invariant measures
On the finite-dimensional marginals shift-invariant measures
2010/11/17
Let $\Sigma$ be a finite alphabet, $\Omega=\Sigma^{\mathbb{Z}^{d}}$ equipped with the shift action, and $\mathcal{I}$ the simplex of shift-invariant measures on $\Omega$. We study the relation betwee...
Circuit QED with a Nonlinear Resonator : ac-Stark Shift and Dephasing
Circuit QED Nonlinear Resonator ac-Stark Shift and Dephasing
2010/11/9
We have performed spectroscopic measurements of a superconducting qubit dispersively coupled to a nonlinear resonator driven by a pump microwave field. Measurements of the qubit frequency shift provid...
Tackling the blackbody shift in a strontium optical lattice clock
blackbody shift strontium optical lattice clock
2010/10/26
A major obstacle for optical clocks is the frequency shift due to black body radiation. We discuss how one can tackle this problem in an optical lattice clock; in our case 87Sr: firstly, by a measurem...
Differential Light Shift Cancellation in a Magnetic-Field-Insensitive Transition of $^{87}$Rb
Differential Light Shift Cancellation Magnetic-Field-Insensitive Transition
2010/10/29
We demonstrate near-complete cancellation of the differential light shift of a two-photon magnetic-field-insensitive microwave hyperfine (clock) transition in $^{87}$Rb atoms trapped in an optical la...
Entanglement of light-shift compensated atomic spin waves with telecom light
Entanglement light-shift compensated atomic spin waves telecom light
2010/10/20
Entanglement of a 795 nm light polarization qubit and an atomic Rb spin wave qubit for a storage time of 0.1 s is observed by measuring the violation of Bell’s inequality (S = 2.65±0.12). Long qubit s...