Multi-ion sensing of dipolar noise sources in ion traps

Trapped-ion quantum platforms are subject to `anomalous' heating due to interactions with electric-field noise sources of nature not yet completely known. There is ample experimental evidence that this noise originates at the surfaces of the trap electrodes, and models assuming fluctuating point-like dipoles are consistent with observations, but the exact microscopic mechanisms behind anomalous heating remain undetermined. Here we show how a two-ion probe displays a transition in its dissipation properties, enabling experimental access to the mean orientation of the dipoles and the spatial extent of dipole-dipole correlations. This information can be used to test the validity of candidate microscopic models, which predict correlation lengths spanning several orders of mag- nitude. Furthermore, we propose an experiment to measure these effects with currently-available traps and techniques

Regional wage convergence in Spain : 1850-1930

Real wages PPP adjusted are used to analyse labour market integration in Spain. In contrast to earlier research analysing migration and nominal wages rates, our research seems to indicate that a well-integrated labour market had emerged in Spain by 1914 and substantial wage convergence happened from 1850 to 1914 with low rates of interna l migration. The shock of World War I and the subsequent globalisation backlash appear to disrupt this integrated market provoking a spectacular increase in wage differentials across regions and provinces. However, real wage convergence across Spanish provinces resumed powerfully over 1920s, this time accompanied by high internal migrations

Regional wage convergence in Spain : 1850-1930.

Real wages PPP adjusted are used to analyse labour market integration in Spain. In contrast to earlier research analysing migration and nominal wages rates, our research seems to indicate that a well-integrated labour market had emerged in Spain by 1914 and substantial wage convergence happened from 1850 to 1914 with low rates of interna l migration. The shock of World War I and the subsequent globalisation backlash appear to disrupt this integrated market provoking a spectacular increase in wage differentials across regions and provinces. However, real wage convergence across Spanish provinces resumed powerfully over 1920s, this time accompanied by high internal migrations.

Studies of the nucler equation of state using numerical calculations of nuclear drop collisions

A numerical calculation for the full thermal dynamics of colliding nuclei was developed. Preliminary results are reported for the thermal fluid dynamics in such processes as Coulomb scattering, fusion, fusion-fission, bulk oscillations, compression with heating, and collisions of heated nuclei

Regional wage convergence in Spain : 1850-1930.

This paper presents a new regional database on real wages for Spain from 1850 to 1930. This evidence is used to analyze the evolution of wages across regions and occupations. Sub stantial wage convergence occurred from 1850 to 1914, despite low rates of internal migration. World War I and the subsequent globalization backlash were associated with a spectacular in crease in wage differentials. However, real wage convergence across Spanish provinces re sumed during the 1920s, this time accompanied by high rates of internal migrationWage convergence; Labor markets; Migration; Growth regressions;

On the Potential of Leptonic Minimal Flavour Violation

Minimal Flavour Violation can be realized in several ways in the lepton sector due to the possibility of Majorana neutrino mass terms. We derive the scalar potential for the fields whose background values are the Yukawa couplings, for the simplest See-Saw model with just two right-handed neutrinos, and explore its minima. The Majorana character plays a distinctive role: the minimum of the potential allows for large mixing angles -in contrast to the simplest quark case- and predicts a maximal Majorana phase. This points in turn to a strong correlation between neutrino mass hierarchy and mixing pattern.Comment: 6 pages; version published on Physics Letters