近日，南昌大学的何弦&王建辉及其研究团队取得一项新进展。他们对基于均匀弱相互作用玻色气体的临界量子热机进行了研究。相关研究成果已于2024年12月16日在国际知名学术期刊《物理评论A》上发表。

该团队研究了在具有周期性边界条件的方箱中，受限弱相互作用玻色气体所驱动的量子奥托发动机。这项研究集中在实现绝热过程的两种方法上：改变系统体积和调整相互作用强度。研究人员分析了玻色-爱因斯坦凝聚和粒子间相互作用对发动机性能，尤其是功率输出和效率的影响。

此外，研究人员还探索了在凝聚临界点附近运行的优势，因为在该点量子现象可能会提升发动机性能。这项研究结果凸显了相变和多体效应在提高机器性能方面的重要性。

附：英文原文

Title: Critical quantum heat engines based on a homogeneous weakly interacting Bose gas

Author: Shaolin Luo, Xian He, Shouhui Guo, Yongli Ma, Jizhou He, Jianhui Wang

Issue&Volume: 2024/12/16

Abstract: We investigate quantum Otto engines operating with a weakly interacting Bose gas confined in a cubic box with periodic boundary conditions. Our study focuses on two approaches to realizing adiabatic processes: varying the system volume and adjusting the interaction strength. We analyze the impact of Bose-Einstein condensation and interparticle interaction effects on engine performance, particularly power output and efficiency. Additionally, we explore the advantages of operating near the critical point of condensation, where quantum phenomena may enhance engine performance. Our findings underscore the significance of phase transitions and many-body effects in improving machine performance.

DOI: 10.1103/PhysRevA.110.062612

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.062612