标题： 原位观测排斥性一维玻色气体中的亚泊松原子数涨落：量子准凝聚态和强相互作用 regime 显示英文标题

标题： In situ observation of sub-Poissonian atom-number fluctuations in a repulsive 1D Bose gas: quantum quasi-condensate and strongly interacting regimes

摘要： 我们报告了对具有排斥相互作用的单个一维玻色气体切片中的原子数涨落的局部测量。 对于弱相互作用的气体，在中间原子密度下，涨落为超泊松分布，并且当气体进入量子准凝聚态 regime 时，在高密度下变为亚泊松分布。 在更强的相互作用下，当接近费米子化 regime 时，我们不再观察到超泊松统计；随着密度的增加，涨落从泊松分布变为亚泊松分布，如同费米气体中的情况。 显示英文摘要

摘要： We report on local measurements of atom number fluctuations in slices of a single 1D Bose gas with repulsive interactions. For weakly interacting gases, the fluctuations are super-Poissonian at intermediate atomic densities and become sub-Poissonian at high densities once the gas enters into the quantum quasi-condensate regime. At stronger interactions, when approaching the fermionization regime, we no longer observe super-Poissonian statistics; the fluctuations go from Poissonian to sub-Poissonian as the density is increased, as those in a Fermi gas.