Scaling properties and asymptotic spectra of finite models of phase transitions as they approach macroscopic limits.
Scaling properties and asymptotic spectra of finite models of phase transitions as they approach macroscopic limits.
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DOI：
10.1103/physrevlett.93.232502
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发表时间：
2004-11
影响因子：
8.6
通讯作者：
D. Rowe;P. Turner;G. Rosensteel
中科院分区：
文献类型：
--
作者：
D. Rowe;P. Turner;G. Rosensteel
研究了N个相互作用玻色子系统的混合对称哈密顿量的渐近谱和标度性质，该哈密顿量在宏观极限上表现为二阶相变。第二个相互作用的玻色子-模型哈密顿量也被考虑，它表现出一阶相变。后者表现出许多平行的特征和一些显著的差异，使得它的渐近临界点性质的性质值得商榷。
The asymptotic spectra and scaling properties of a mixed-symmetry Hamiltonian, which exhibits a second-order phase transition in its macroscopic limit, are examined for a system of N interacting bosons. A second interacting boson-model Hamiltonian, which exhibits a first-order phase transition, is also considered. The latter shows many parallel characteristics and some notable differences, leaving it open to question as to the nature of its asymptotic critical-point properties.