标题： 一维玻色气体中的亚泊松涨落：从量子准凝聚体到强相互作用区域 显示英文标题

标题： Sub-Poissonian fluctuations in a 1D Bose gas: from the quantum quasi-condensate to the strongly interacting regime

摘要： 我们报告对单个一维玻色气体切片中的原子数涨落的局部测量结果。 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，一旦气体进入量子准凝聚态 regime，涨落在高密度下变为亚泊松分布。 在更强的相互作用下，接近费米子化 regime 时，我们不再观察到超泊松统计；随着密度增加，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.