000			02244 a2200217 4500
003			OSt
020			_a9784431553922
040			_cIIT Kanpur
041			_aeng
082			_a530.144 _bK965q
100			_aKuramoto, Yoshio
245			_aQuantum many-body physics [Vol. 934] _ba perspective on strong correlations _cYoshio Kuramoto
260			_bSpringer Nature _c2020 _aJapan
300			_axi, 261p
440			_aLecture notes in physics; v. 934
490			_a/ edited by Matthias Bartelmann ...[et al.]
520			_aThis book offers a compact tutorial on basic concepts and tools in quantum many-body physics, and focuses on the correlation effects produced by mutual interactions. The content is divided into three parts, the first of which introduces readers to perturbation theory. It begins with the simplest examples—hydrogen and oxygen molecules—based on their effective Hamiltonians, and looks into basic properties of electrons in solids from the perspective of localized and itinerant limits. Readers will also learn about basic theoretical methods such as the linear response theory and Green functions. The second part focuses on mean-field theory for itinerant electrons, e.g. the Fermi liquid theory and superconductivity. Coulomb repulsion among electrons is addressed in the context of high-Tc superconductivity in cuprates and iron pnictides. A recent discovery concerning hydride superconductors is also briefly reviewed. In turn, the third part highlights quantum fluctuation effects beyond the mean-field picture. Discussing the dramatic renormalization effect in the Kondo physics, it provides a clear understanding of nonperturbative interaction effects. Further it introduces readers to fractionally charged quasi-particles in one and two dimensions. The last chapter addresses the dynamical mean field theory (DMFT). The book is based on the author’s long years of experience as a lecturer and researcher. It also includes reviews of recent focus topics in condensed matter physics, enabling readers to not only grasp conventional condensed matter theories but also to catch up on the latest developments in the field.
650			_aCorrelated systems
650			_aSuperconductivity
942			_cBK
999			_c564849 _d564849