The history of the discovery of the exclusion principle, for which I have received the honor of the Nobel Prize award this year, goes back to my student days in Munich. While, in school in Vienna, I...
In the paper I describe why and for what achievements John F. Clauser, Alain Aspect and Anton Zeilinger received the Nobel Prize in 2022 (exactly 100 years after the prize had been awarded to Einstein and Bohr), as well as my own research related to the prize.The text is written in a twofold way. Based on familiarity with quantum physics the reader can switch between the main narrative and the parts marked with bullets (•) explaining some aspects in more detail, but one can restrict attention to the main text only. As the author, I would prefer that the paper be of interest to teachers, students, and possibly also high-school students rather than professors, although even they can learn something interesting, also from the parts marked with a bullet.
Chien-Shiung Wu (1912–1997) is often referred to as “the Chinese Marie Curie” even though she conducted most of her research in the US. She is best known for her discovery of the non-conservation of parity for weakly interacting particles – a finding for which she is widely regarded as having been passed over for the 1957 Nobel Prize in Physics. Seven years earlier, though, in a one-page letter to Physical Review , Wu and her graduate student also quietly reported what has come to be understood as the first conclusive evidence of entangled photons. Twenty years later, as quantum foundations research emerged from shadow, Wu revisited her 1949 experiment with a more refined approach. Wu shared the new results with Stuart Freedman, a collaborator of John Clauser. Clauser et al . would rigorously critique Wu’s experiments through at least 1978. In 2022, the Nobel Committee honored Clauser, Alain Aspect, and Anton Zeilinger, each of whom had produced increasingly convincing proof of entanglement beginning in the 1970s. Wu’s foundational work from almost seventy years earlier, however, was not mentioned. This chapter aims to help bring Wu’s entangled photons back into the light.
Abstract Erwin Schrödinger was born on 12 August 1887 in Vienna. His father was a Viennese and came from a very cultured family. The ancestors of his mother came from England which explains why Schrodinger spoke and wrote a practically flawless English. The relationship between father and son was excellent. To the growing boy the father was friend and teacher and he never tired of answering the inquisitive questions which the bright and interested boy produced in plenty. His elementary education was private and was carried out at home. At the age of 11 he entered the Akademische Gymnasium, a first-class grammar school which emphasized classical education, Latin and Greek. In spite of his main interest in mathematics and physics he loved the old languages as well as classical German and foreign poetry, and he was an addict of the famous Burgtheater in Vienna. He entered the University of Vienna in 1906. His great and beloved teacher there was F. Hasenohrl who had just succeeded to the chair of Boltzmann and who considered it his privilege and duty to continue the work of this great theoretical physicist. Hasenohrl was a very gifted physicist indeed and probably he would have been capable of great achievements had he not been killed in 1916 serving at the Italian front. He exercised a profound and lasting influence on the student Schrodinger. When much later Schrodinger received the Nobel Prize he said: ‘had Hasenohrl not been killed so young he would now be here in my place.’ Schrodinger himself served during the war as an artillery officer in Italy. From 1910 onwards his first publications began to appear. They were concerned with statistical problems, dielectrics, magnetism, and so on. Later on he also worked on X-ray diffraction in lattices, following the great discovery of von Laue in 1912.