John Gribbin has been writing what amounts to the same book for years, so by now he is good at it. The book covers the life of Erwin Schrödinger and the quantum mechanics he worked on. His personal life is certainly interesting. While married to his wife Anny for life, he was always madly in love with someone else. And when that love went well, his scientific output improved. His burst of scientific creativity at the age of thirty eight is explained by Hermann Weyl that "Schrödinger did his great work during a late erotic outburst in his life." Weyl was Anny Schrödinger's lover, so presumably he knew what he was talking about. And apparently the good people at Oxford University were not amused when Schrödinger arrived there with both his wife and girlfriend. So they ended up in Dublin, where "you might expect Erwin's unusual domestic arrangements to have been even more of a problem in Catholic Ireland than in Oxford, but in Dublin there was a marked contrast between what was officially approved and what people actually did. [A friend called it] sowing her wild oats on weekdays and praying for a crop failure on Sunday."
Scientifically, the theme of the book is that Schrödinger, along with Einstein, never accepted the Copenhagen Interpretation of quantum mechanics that particles have no objective existence, only a probability of being somewhere. The act of measurement causes a "collapse" of the wave function and then we perceive it to exist. His famous wave equation says that when there are two wave/particles their waves do not get added together, instead the waves exist in different dimensions. Max Born interpreted this as being the probability of their existence, in line with the Copenhagen Interpretation, but Schrödinger was never happy with this. The other interesting property of his wave equation is that it results in waves going backwards in time.
John Gribbin is aligned with the minority view in quantum mechanics known as "Many Worlds", and is convinced that Schrödinger pointed the way. This view is supported by the quantum computer, discussed in the last chapter "Schrödinger's Scientific Legacy", which does its calculations in what appears to be multiple universes. Who knows what this really means.
The dedication for this book is "For Terry Rudolph, even though he won't read it." If you find yourself skipping parts of this book, be sure to read the Postscript to catch the happy ending, and the meaning of the dedication.
I really liked this book.