دانلود کتاب Picturing Quantum processes - A diagrammatic approach

A First Course in Quantum Theory and Diagrammatic Reasoning

Glad you made it here! This book is about telling the story of quantum theory entirely in terms of pictures. Before we get into telling the story itself, it’s worth saying a few words about how it came about. On the one hand, this is a very new story, in that it is closely tied to the past 10 years of research by us and our colleagues. On the other hand, one could say that it traces back some 80 years when the amazing John von Neumann denounced his own quantum formalism and embarked on a quest for something better. One could also say it began when Erwin Schrödinger addressed Albert Einstein’s concerns about ‘spooky action at a distance’ by identifying the structure of composed systems (and in particular, their non-separability) as the beating heart of quantum theory.
From a complementary perspective, it traces back some 40 years when an undergraduate student named Roger Penrose noticed that pictures out-classed symbolic reasoning when working with the tensor calculus.
But 80 years ago the authors weren’t around yet, at least not in human form, and 40 years ago there wasn’t really that much of us either, so this preface will provide an egocentric take on the birth of this book. This also allows us to wholeheartedly acknowledge all of those without whom this book would never have existed (as well as some who nearly succeeded in killing it) - and the marvelous LibGen people and their beloved ones (those who are and those who no longer are here) which changed our world much more than many professional politicians! [Well, the last sentence isn´t exactly from the book but from an enthusiastic uploader - enjoy!]