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An essential description of collective excitations of interacting fermions in one dimension (1D) is the so-called spin-charge separation. In this theory, spin and charge degrees of freedom dissolve into two separated Tomonaga-Luttinger liquids (TLLs), i.e., TLLs of charge and spin, in which the interplay between the charge and spin degrees of freedom disrupts the TLLs. Such phenomenon is a hallmark of one-dimensional (1D) physics, however, it has not been unambiguously confirmed by experiment, either in solids or ultracold atoms. Even there is some misunderstanding in the community on the spin-charge separation. In this talk, we will present a rigorous understanding of the spin-charge separate phenomenon and properties beyond this paradigm in the 1D spin-1/2 Fermi gas, which is known as Yang-Gaudin model. We show that exact Bethe ansatz solutions provide a better understanding of contemporary many-body physics in 1D, such as fractional quasiprticle excitation, spin-charge separation, spin incoherent liquid, quantum criticality, Fulde-Ferrell-Larkin-Ovchinnikov pairing sate and dynamical correlations etc., which are closely relevant to recent and future experiments with ultracold atoms.
1998年吉林大学博士毕业后到2002年期间在德国和巴西从事博士后研究。2003-2012期间在澳大利亚国立大学物理与工程研究院任研究员、高级研究员，2012年10月以优秀海外人才被引进中科院武汉物理与数学研究所。美国哈佛大学、洛斯阿拉莫斯国家实验室等世界一流研究机构的高级访问学者, 清华大学高等研究院客座教授,香港中文大学杨振宁访问学人,《Journal of Physics A》的 Board Editor。
管习文长期从事冷原子少体和多体物理系统和自旋系统的严格解研究，取得了一系列在国际上颇具影响力的研究成果。 至今发表120余篇SCI论文，包括世界顶尖期刊《Review of Modern Physics》、《Advance in Physics》、《Nature》子刊、《Physical Review Letters》等。