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Jun 20, 2018

Hadronic decays of a light Higgs-like scalar

We revisit the question of hadronic decays of a GeV-mass Higgs-like scalar. A number of extensions of the Standard Model predict Higgs sector with ad…
Jun 23, 2010
Optics

We report a coherence-preserving photon frequency down-conversion experiment based on difference-frequency generation in a periodically poled Lithium niobate waveguide, at the single-photon level. The coherence of the process has been demonstrated b…

Coherent frequency-down-conversion interface for quantum repeaters

We report a coherence-preserving photon frequency down-conversion experiment based on difference-frequency generation in a periodically poled Lithium…
Sep 12, 2016

We have analyzed the properties of the Lyα line of five low-redshift Lyman continuum leaking galaxies observed with the COS spectrograph onboard HST that have recently been reported by Izotov et al. (2016a, b). The z∼0.3 sources were selected for co…

Lyman-alpha spectral properties of five newly discovered Lyman contin…

We have recently reported the discovery of five low redshift Lyman continuum (LyC) emitters (LCEs, hereafter) with absolute escape fractions fesc(LyC…
Jul 27, 2011

The HARPS search for southern extra-solar planets. XXXI. Magnetic a…

Context. Searching for extrasolar planets through radial velocity measurements relies on the stability of stellar photospheres. Aims. We aim at chara…
Jun 16, 2009

The secondary eclipse of the transiting exoplanet CoRoT-2b

We present a study of the light curve of the transiting exoplanet CoRoT-2b, aimed at detecting the secondary eclipse and measuring its depth. The dat…
Apr 19, 2013
Applications

Robust VIF regression with application to variable selection in large…

The sophisticated and automated means of data collection used by an increasing number of institutions and companies leads to extremely large data set…
Jun 18, 2009

The environment of formation as a second parameter for globular clust…

We perform an evolutionary multivariate analysis of a sample of 54 Galactic globular clusters with high-quality colour-magnitude diagrams and well-de…
Dec 07, 2017
Materials Science
Atomic Physic

Efficient optical pumping using hyperfine levels in $^{145}$Nd$^{3+…

Efficient optical pumping is an important tool for state initialization in quantum technologies, such as optical quantum memories. In crystals doped …
Feb 11, 2015
Probability
Mathematical Physics

A new proof of the sharpness of the phase transition for Bernoulli …

We provide a new proof of the sharpness of the phase transition for nearest-neighbour Bernoulli percolation. More precisely, we show that - for $p<…
Apr 29, 2015

Quantum random number generation for 1.25 GHz quantum key distributio…

Security proofs of quantum key distribution (QKD) systems usually assume that the users have access to source of perfect randomness. State-of-the-art…
Jan 27, 2015
Mesoscale and Nanoscale Physics

Electrostatically Induced Superconductivity at the Surface of WS$_2$

We investigate transport through ionic liquid gated field effect transistors (FETs) based on exfoliated crystals of semiconducting WS$_2$. Upon elect…
Jun 07, 2010
Materials Science

Lateral piezoelectric response across ferroelectric domain walls in t…

In purely c-axis oriented PbZr$_{0.2}$Ti$_{0.8}$O$_3$ ferroelectric thin films, a lateral piezoresponse force microscopy signal is observed at the po…
Aug 02, 2017

The full-sky relativistic correlation function and power spectrum of …

We derive an exact expression for the correlation function in redshift shells including all the relativistic contributions. This expression, which do…
May 19, 2016

Scale invariant cosmology III: dynamical models and comparisons with …

We examine the properties of the scale invariant cosmological models, also making the specific hypothesis of the scale invariance of the empty space …
May 05, 2016
Computational Engineering
Finance
and Science i

Bifurcation Analysis of Reaction Diffusion Systems on Arbitrary Surfa…

In this paper we present computational techniques to investigate the solutions of two-component, nonlinear reaction-diffusion (RD) systems on arbitra…
Oct 18, 2011

ABJM theory as a Fermi gas

The partition function on the three-sphere of many supersymmetric Chern-Simons-matter theories reduces, by localization, to a matrix model. We develo…
Sep 01, 2009

Fingerprinting dark energy

Dark energy perturbations are normally either neglected or else included in a purely numerical way, obscuring their dependence on underlying paramete…
Feb 14, 2017
Machine Learning

Crossmatching variable objects with the Gaia data

Tens of millions of new variable objects are expected to be identified in over a billion time series from the Gaia mission. Crossmatching known varia…
Feb 05, 2018
Methodology

Exceedance-based nonlinear regression of tail dependence

The probability and structure of co-occurrences of extreme values in multivariate data may critically depend on auxiliary information provided by cov…
Jan 09, 2015

Extragalactic sources in Cosmic Microwave Background maps

We discuss the potential of a next generation space-borne CMB experiment for studies of extragalactic sources with reference to COrE+, a project subm…
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