Concept

Interaction de Yukawa

Publications associées (102)

Influence of a nonradiative reservoir on polariton spin multistability

Benoît Marie Joseph Deveaud, François Morier-Genoud, Marcia Portella Oberli, Taofiq Paraïso, Roland Cerna

In this work, we study the influence of the excitation conditions on power-dependent spin switching and spin multistability of exciton polaritons in planar semiconductor microcavities. We obtain experimental evidence for the influence of a reservoir of non ...

American Physical Society2013

Higgs at last

Francesco Riva

We update the experimental constraints on the parameters of the Higgs effective Lagrangian. We combine the most recent LHC Higgs data in all available search channels with electroweak precision observables from SLC, LEP-1, LEP-2, and the Tevatron. Overall, ...

Springer2013

Toroidal drift precession and wave-particle interaction in shaped tokamaks with finite beta and neoclassical equilibrium effects

Jonathan Graves

The drift kinetic equation is analysed for linear instabilities that are sensitive to the toroidal drift motion of long-mean free path particle populations. The interaction Lagrangian is resolved, and the toroidal drift precession evaluated for realistic t ...

Iop Publishing Ltd2013

XMCD study of the magnetic exchange coupling in a fluoride-bridged Dy-Cr molecular cluster

Harald Brune, Stefano Rusponi, Jan Gui-Hyon Dreiser

We have studied the fluoride-bridged Dy-Cr molecular nanomagnet [Dy(hfac)(4)-CrF2(py)(4)]center dot 1/2CHCl(3) by x-ray magnetic circular dichroism (XMCD). The obtained element-specific magnetization curves allow for a quantification of the sign and streng ...

Korean Physical Soc2013

Higgs couplings in composite models

Francesco Riva, Riccardo Torre, Ennio Salvioni

We study Higgs couplings in the composite Higgs model based on the coset SO(5)/SO(4). We show that the couplings to gluons and photons are insensitive to the elementary-composite mixings and thus not affected by light fermionic resonances. Moreover, at lea ...

Amer Physical Soc2013

On the effective operators for Dark Matter annihilations

Alexander Monin, Andrea De Simone, Andrea Thamm

We consider effective operators describing Dark Matter (DM) interactions with Standard Model fermions. In the non-relativistic limit of the DM field, the operators can be organized according to their mass dimension and their velocity behaviour, i.e. whethe ...

Iop Publishing Ltd2013

Long-distance radiative excitation transfer between quantum dots in disordered photonic crystal waveguides

Vincenzo Savona, Momchil Minkov

We theoretically investigate the magnitude and range of the photon-mediated interaction between two quantum dots embedded in a photonic crystal waveguide, including fabrication disorder both in the crystal and in the dot positioning. We find that disorder- ...

Amer Physical Soc2013

Coupling of multiple LSP and SPP resonances: interactions between an elongated nanoparticle and a thin metallic film

Olivier Martin, Arash Farhang, Nicolas Bigler

We study the coupling interactions between a progressively elongated silver nanoparticle and a silver film on a glass substrate. Specifically, we investigate how the coupling between localized surface plasmons (LSPs) and propagating surface plasmon polarit ...

2013

Kapellasite: A Kagome Quantum Spin Liquid with Competing Interactions

Magnetic susceptibility, NMR, muon spin relaxation, and inelastic neutron scattering measurements show that kapellasite, Cu3Zn(OH)(6)Cl-2, a geometrically frustrated spin-1/2 kagome antiferromagnet polymorphic with herbertsmithite, is a gapless spin liquid ...

2012

Spectroscopy and Dynamics of Barium-doped Helium Nanodroplets

Marcel Drabbels, Evgeniy Loginov

Excitation spectra up to the ionization threshold are reported for barium atoms located on the surface of helium nanodroplets. For states with low principal quantum number, the resonances are substantially broadened and shifted towards higher energy with r ...

American Institute of Physics2012

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