Ettore Majorana and his heritage seventy years later

  title={Ettore Majorana and his heritage seventy years later},
  author={Salvatore Esposito},
  journal={Annalen der Physik},
The physicists working in several areas of research know quite well the name of Ettore Majorana, since it is currently associated to fundamental concepts like Majorana neutrinos in particle physics and cosmology or Majorana fermions in condensed matter physics. But, probably, very few is known about other substantial contributions of that ingenious scholar, and even less about his personal background. For non specialists, instead, the name of Ettore Majorana is usually intimately related to the… Expand
The disappearance of Ettore Majorana: an analytic examination
The many recent researches into the mysterious disappearance of Ettore Majorana, one of the greatest minds of theoretical physics in the twentieth century, are summarised and discussed in someExpand
Majorana Solutions to the Two-Electron Problem
The two-electron atom is the simplest nontrivial quantum system not amenable to exact solutions. Today, its relevance in the development of quantum mechanics and its pedagogical value within theExpand
A theory of ferromagnetism by Ettore Majorana
We present and analyze in detail an unknown theory of ferromagnetism developed by Ettore Majorana as early as the beginnings of 1930s, substantially different in the methods employed from theExpand
Majorana, Pauling and the quantum theory of the chemical bond
We discuss in detail very little known results obtained by Majorana as early as 1931, regarding the quantum theory of the chemical bond in homopolar molecules, based on the key concept of exchangeExpand
Searching for an equation: Dirac, Majorana and the others
Abstract We review the non-trivial issue of the relativistic description of a quantum mechanical system that, contrary to a common belief, kept theoreticians busy from the end of 1920s to (at least)Expand
Fundamental times, lengths and physical constants: Some unknown contributions by Ettore Majorana
We review the introduction in physics of the concepts of an elementary space length and of a fundamental time scale, analyzing some related unknown contributions by Ettore Majorana. In particular, weExpand
This paper is dedicated to the memory of Matey Mateev , a missing friend Clifford Algebras and Spinors
Expository notes on Clifford algebras and spinors with a detailed discussion of Majorana, Weyl, and Dirac spinors. The paper is meant as a review of background material, needed, in particular, in nowExpand
Majorana and the theoretical problem of photon-electron scattering
Relevant contributions by Majorana regarding Compton scattering off free or bound electrons are considered in detail, where a (full quantum) generalization of the Kramers-Heisenberg dispersionExpand
Clifford Algebras and Spinors
Expository notes on Clifford algebras and spinors with a detailed discussion of Majorana, Weyl, and Dirac spinors. The paper is meant as a review of background material, needed, in particular, in nowExpand
Ettore Majorana : unpublished research notes on theoretical physics
I.- Dirac Theory.- Quantum Electrodynamics.- II.- Atomic Physics.- Molecular Physics.- Statistical Mechanics.- III.- The Theory of Scattering.- Nuclear Physics.- IV.- Classical Physics.- MathematicalExpand


Teaching theoretical physics: The cases of Enrico Fermi and Ettore Majorana
We report on theoretical courses by Enrico Fermi and Ettore Majorana, which give evidence of the first appearance and further development of quantum mechanics teaching in Italy. On the basis ofExpand
The talk is quite subjective in character, and is in no way complete. It is not a chapter of history of particle physics. It is a collection of a few short stories related to neutrino physics. Two ofExpand
Majorana and the Quasi-Stationary States in Nuclear Physics
Abstract A complete theoretical model describing artificial disintegration of nuclei by bombardment with α-particles, developed by Majorana as early as 1930, is discussed in detail jointly with theExpand
Ettore Majorana’s Course on Theoretical Physics: A Recent Discovery
We analyze in some detail the course that Ettore Majorana gave on theoretical physics at the University of Naples between January and March 1938, just prior to his mysterious disappearance. WeExpand
Comments on a Paper by Majorana Concerning Elementary Particles
An early paper (1932) by Majorana, that has received but scant attention, is reexamined in light of later developments. This pioneering paper constructs a relativistically invariant theory ofExpand
An unknown story: Majorana and the Pauli-Weisskopf scalar electrodynamics
An account is given of an interesting but unknown theory by Majorana regarding scalar quantum electrodynamics, elaborated several years before the known Pauli-Weisskopf theory. TheoreticalExpand
Following Weyl on Quantum Mechanics: The Contribution of Ettore Majorana
After a quick historical account of the introduction of the group-theoretical description of quantum mechanics in terms of symmetries, as proposed by Weyl, we examine some unpublished papers byExpand
Space-Time Approach to Non-Relativistic Quantum Mechanics
Non-relativistic quantum mechanics is formulated here in a different way. It is, however, mathematically equivalent to the familiar formulation. In quantum mechanics the probability of an event whichExpand
Fermi, Majorana and the Statistical Model of Atoms
We give an account of the appearance and first developments of the statistical model of atoms proposed by Thomas and Fermi, focusing on the main results achieved by Fermi and his group in Rome.Expand
A Majorana-Oppenheimer formulation of quantum electrodynamics
SummaryIt is shown that, according to suggestions by Majorana and Oppenheimer, it is possible to formulate quantum electrodynamics in terms of the same formalism in a Dirac’s electron theory, thusExpand