相对论系统中的BCS-BEC越渡相变热力学
Relativistic BCS-BES crossover thermodynamics
本文讨论了在相对论Fermi-Bose系统中的BCS-BEC越渡相变条件及其热力学性质，发现其相变并没有严格的临界点，这也就使得相对论系统中得以存在稳定的相变状态和热力学性质。利用Nambu-Gorkov表象，我们还得到了临界点附近费米子的激发能谱。同时，也给出了临界温度附近和低于临界温度区域的能隙表达式。发现，在临界温度附近存在着零质量粒子的凝聚。
In this paper, we discussed the relativistic BCS-BEC crossover thermodynamics in the Fermi-Bose system. We find that there is not a strict critical point in the system, and this is the reason why BCS-BEC crossover state is steady. By using the Nambu-Gorkov transformation, we find the exited energy spectrum nearing the critical point. The energy gap equation also revealed.
傅永平
物理学
BCS-BEC越渡相变相对论热力学
BCS-BEC crossover relativity thermodynamics
傅永平.相对论系统中的BCS-BEC越渡相变热力学[EB/OL].(2008-01-25)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/200801-762.点此复制
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