{"product_id":"an-algebraic-approach-to-the-many-electron-problem-von-jaroslav-zamastil-tereza-uhli-ova-und-tereza-uhlirova","title":"An Algebraic Approach to the Many-Electron Problem","description":"\n                                \n                \u003cp\u003eThis book presents an algebraic approach to the coupled cluster method for many-electron systems, pioneered by Josef Paldus. Using field methods along with an algebraic, rather than diagrammatic, approach facilitates a way of deriving the coupled cluster method which is readily understandable at the graduate level. The book begins with the notion of the quantized electron field and shows how the N-electron Hamiltonian can be expressed in its language. This is followed by introduction of the Fermi vacuum and derivation of the Hartree-Fock equations along with conditions for stability of their solutions. Following this groundwork, the book discusses a method of configuration interaction to account for dynamical correlations between electrons, pointing out the size-extensivity problem, and showing how this problem is solved with the coupled cluster approach. This is followed by derivation of the coupled cluster equations in spin-orbital form. Finally, the book explores practical aspects, showing how one may take advantage of permutational and spin symmetries, and how to solve coupled-cluster equations, illustrated by the Hubbard model of benzene, the simplest quasi-realistic model of electron correlation.\u003c\/p\u003e\n                            \n            \u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783031878275\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783031878275","offer_id":54726751060293,"sku":"9783031878275","price":48.14,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/8076c569-f0bb-4602-a5bb-34a7284c00b0.jpg?v=1775103710","url":"https:\/\/shop.autorenwelt.de\/products\/an-algebraic-approach-to-the-many-electron-problem-von-jaroslav-zamastil-tereza-uhli-ova-und-tereza-uhlirova","provider":"Autorenwelt Shop","version":"1.0","type":"link"}