ABC of instantons

  title={ABC of instantons},
  author={Arkady Vainshtein and Valentin Ivanovich Zakharov and Victor A. Novikov and Mikhail Misha Shifman},
An attempt is made to present an instanton "calculus" in a relatively simple form. The physical meaning of instantons is explained by the example of the quantum-mechanical problem of energy levels in a two-humped potential. The nonstandard solution to this problem based on instantons is analyzed, and the reader is acquainted with the main technical elements used in this approach. Instantons in quantum chromodynamics are then considered. The Euclidean formulation of the theory is described… CONTINUE READING

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