We propose to generate localized artificial magnetic fields using two thin Raman laser beams intersected at a narrow region of a two-leg ladder, where the frequency difference must approximately match the energy offset between the two legs.Based on this method, we investigate the single-atom transport in a two-leg ladder with only two rungs, which,
To predict the combustion characteristic of auto ignition combustion in internal combustion engines, it is necessary to consider the inhomogeneity of the fuel, EGR and air in the mixture.In this research, a PDF (Probability Brake Pump Relocation Bracket Density Function) combustion model considering the influence of the inhomogeneity of mixture on
The impact from COVID is dire to economies, and G20 countries are no exception irrespective of how Serving Pitchers developed their market are.This is due to how investors respond to bad and good news alike.Using daily data, for the G20 countries and data on COVID, we employ quantile regression (QR) and quantile-on-quantile regression (QQR) to expl