{"product_id":"grms-or-graphical-representation-of-model-spaces-vol-1-basics-von-wlodzislaw-duch","title":"GRMS or Graphical Representation of Model Spaces","description":"The purpose of these notes is to give some simple tools and pictures to physicists and ' chemists working on the many-body problem. Abstract thinking and seeing have much in common - we say \"I see\" meaning \"I understand\" , for example. Most of us prefer to have a picture of an abstract object. The remarkable popularity of the Feynman diagrams, and other diagrammatic approaches to many-body problem derived thereof, may be partially due to this preference. Yet, paradoxically, the concept of a linear space, as fundamental to quantum physics as it is, has never been cast in a graphical form. We know that is a high-order contribution to a two-particle scattering process (this one invented by Cvitanovic(1984)) corresponding to a complicated matrix element. The lines in such diagrams are labeled by indices of single-particle states. When things get complicated at this level it should be good to take a global view from the perspective of the whole many-particle space. But how to visualize the space of all many-particle states ? Methods of such visualization or graphical representation of the ,spaces of interest to physicists and chemists are the main topic of this work.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783540171690\"\u003e\u003ch3\u003eVol. 1 Basics\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783540171690","offer_id":39437144784989,"sku":"9783540171690","price":106.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/74787773-0725-4c46-aec4-66aa03edc998.jpg?v=1763446065","url":"https:\/\/shop.autorenwelt.de\/products\/grms-or-graphical-representation-of-model-spaces-vol-1-basics-von-wlodzislaw-duch","provider":"Autorenwelt Shop","version":"1.0","type":"link"}