Multivalued fields
Multivalued fields
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多值字段
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
H. Kleinert
中科院分区：
文献类型：
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作者：
H. Kleinert
借助于不满足施瓦茨可积性条件的多值场，多体系统线状激发的统计力学可以很容易地表述出来。这些领域必须包括到这样的系统的流体动力学描述，以允许一个适当的理解所观察到的相变。我们勾画了相关量子场论的结构及其在超流体、玻色-爱因斯坦凝聚体、超导体、晶体和磁致伸缩气体相变中的应用。
The statistical mechanics of line-like excitations of many-body systems can most easily be formulated with the help of multivalued fields which do not satisfy the Schwarz integrability conditions. These fields must be included into the hydrodynamic description of such systems in order to allow for a proper understanding of the observed phase transitions. We sketch the construction of the associated quantum field theory and its application to the phase transitions of superfluids, Bose-Einstein condensates, superconductors, crystals, and magnetic monopole gases.