Comparison of two efficient methods for calculating partition functions

In the long-time pursuit of the solution to calculate the partition function (or free energy) of condensed matter, Monte-Carlo-based nested sampling should be the state-of-the-art method, and very recently, we established a direct integral approach that works at least four orders faster. In present work, the above two methods were applied to solid argon at temperatures up to $300$K, and the derived internal energy and pressure were compared with the molecular dynamics simulation as well as experimental measurements, showing that the calculation precision of our approach is about 10 times higher than that of the nested sampling method.Comment: 6 pages, 4 figure

Comparison of two efficient methods for calculating partition functions

In the long-time pursuit of the solution to calculate the partition function (or free energy) of condensed matter, Monte-Carlo-based nested sampling should be the state-of-the-art method, and very recently, we established a direct integral approach that works at least four orders faster. In present work, the above two methods were applied to solid argon at temperatures up to $300$K, and the derived internal energy and pressure were compared with the molecular dynamics simulation as well as experimental measurements, showing that the calculation precision of our approach is about 10 times higher than that of the nested sampling method.Comment: 6 pages, 4 figure

Innovation Quality, Customer Innovation, and Innovation Culture: The Relationship Mediated by Social Media

Research on the relationship between innovation culture and innovation quality from the perspective of customer innovation is a hot topic in the field of innovation. This article, through the questionnaire survey to 65 innovative enterprises in China, using the structural equation model and hierarchical multiple regression analysis for validating the proposed hypothesis, discusses the relationship between the innovative culture, customer innovation, and innovation quality. The results show that there is a significant positive correlation between innovation culture and innovation quality, customer innovation and innovation quality, and innovation culture and customer innovation. Customer innovation partially mediates the impact of innovation culture on innovation quality, and social media strengthens the role of customer innovation in promoting innovation quality. Customer innovation in culture on enterprise innovation quality partial mediation effect in the process, the influence of the social media to strengthen the customer innovation role in promoting the quality of innovation