# GRMS or Graphical Representation of Model Spaces

## Vol. 1 Basics

Part of the Lecture Notes in Chemistry book series (LNC, volume 42)

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Part of the Lecture Notes in Chemistry book series (LNC, volume 42)

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.

RMS classification element many-body problem mechanics mutation physics quantum mechanics quantum physics quantum theory scattering spin symmetry

- DOI https://doi.org/10.1007/978-3-642-93347-9
- Copyright Information Springer-Verlag Berlin Heidelberg 1986
- Publisher Name Springer, Berlin, Heidelberg
- eBook Packages Springer Book Archive
- Print ISBN 978-3-540-17169-0
- Online ISBN 978-3-642-93347-9
- Series Print ISSN 0342-4901
- Series Online ISSN 2192-6603
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