液态仲氢的量子统计和动量分布
Quantum statistics and the momentum distribution of liquid para-hydrogen
摘要：
采用连续空间Worm算法对T=16.5 K的液态仲氢进行了广泛的蒙特卡罗模拟。动量分布的结果，以及每个粒子的动能和对关联函数的报告。这个系统的静力平衡热力学性质一般可以通过假设分子是可区分的来计算。然而，单体密度矩阵（和相关的动量分布）受到粒子不可逆性和量子统计的影响，在一定程度上适合于实验观察。与现有的实验数据和其他理论和数值计算的比较。
英文摘要：
Extensive Monte Carlo simulations of bulk liquid para-hydrogen at a temperature T=16.5 K have been carried out using the continuous-space Worm Algorithm. Results for the momentum distribution, as well as for the kinetic energy per particle and the pair correlation function are reported. The static equilibrium thermodynamic properties of this system can be generally computed by assuming that molecules are distinguishable. However, the one-body density matrix (and the associated momentum distribution) are affected by particle indistinguishability and quantum statistics, to an extent that lends itself to experimental observation. Comparisons with available experimental data and other theoretical and numerical calculations are offered.
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