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arXiv 1002.3719cond-mat.str-el
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费米子凝聚:一个奇怪的想法成功地解释了自然界中许多物体的行为

Fermion condensation: a strange idea successfully explaining behavior of numerous objects in Nature

V. R. Shaginyan, M. Ya. Amusia, K. G. Popov

摘要:

强关联费米系统是物理学中最有趣、实验研究最好的基本系统之一。然而,这些都是对理论理解的挑战。基于Kondo晶格等概念并涉及量子临界点处的量子涨落和热涨落的思想已被用来解释不寻常的物理。唉,这些方法被建议用来描述一种性质,却无法解释其他性质。这意味着一个真正的理论危机,表明存在着一个隐藏的基本自然法则,这仍然有待于认识。一个费米子凝聚量子相变理论,保留了扩展的准粒子范式,并与作为温度,磁场等的函数的有效质量的无限增长密切相关,能够解决这个问题。我们讨论的理论建设,并表明,它提供了强相关系统,如重费米子金属和准二维费米系统的绝大多数实验结果的理论解释。

英文摘要:

Strongly correlated Fermi systems are among the most intriguing, best experimentally studied and fundamental systems in physics. These are, however, in defiance of theoretical understanding. The ideas based on the concepts like Kondo lattice and involving quantum and thermal fluctuations at a quantum critical point have been used to explain the unusual physics. Alas, being suggested to describe one property, these approaches fail to explain the others. This means a real crisis in theory suggesting that there is a hidden fundamental law of nature, which remains to be recognized. A theory of fermion condensation quantum phase transition, preserving the extended quasiparticles paradigm and intimately related to unlimited growth of the effective mass as a function of temperature, magnetic field etc, is capable to resolve the problem. We discuss the construction of the theory and show that it delivers theoretical explanations of vast majority of experimental results in strongly correlated systems such as heavy-fermion metals and quasi-two-dimensional Fermi systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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