wavelength to support hypothesis of wave particle duality. Matrix mechanics papers: W. Heisenberg (1925), Über quantentheoretische Umdeutung kinematischer und mechanischer Beziehungen (in German), Zeitschrift für Physik, 33, 879-893 (received July 29, 1925). [English translation in: B. L. van der Waerden, editor, Sources of Quantum Mechanics (Dover Publications, 1968) (English title: Quantum-Theoretical Re-interpretation of Kinematic and Mechanical Relations).] M. Born and P. Jordan (1925), Zur Quantenmechanik (in German), Zeitschrift für Physik, 34, 858-888 (received September 27, 1925). [English translation in: B. L. van der Waerden, editor, Sources of Quantum Mechanics (Dover Publications, 1968) (English title: On Quantum Mechanics).] M. Born, W. Heisenberg, and P. Jordan (1926), Zur Quantenmechanik II (in German), Zeitschrift für Physik, 35, 557–615, (received November 16, 1925). [English translation in: B. L. van der Waerden, editor, Sources of Quantum Mechanics (Dover Publications, 1968) (English title: On Quantum Mechanics II).] These three papers (die Dreimaennerarbeit) formulated matrix mechanics, the first successful (non-relativistic) theory of quantum mechanics. Wave mechanics papers. Schroedinger, E (1926). "Quantisierung als Eigenwertproblem" [German; tr. "Quantization as an Eigenvalue Problem"]. Four communications (Ger Mitteilungen). Key: citeulike:4768943. Alternate URL, from the original. pp. 489–527, (1926). Alternate URL, from the original. pp. 437–490, (1926). from the original. pp. 109–139, (1926). from the original. These papers introduce the wave-mechanical description of the atom (Ger Wellenmechanik; not to be confused with classical wave mechanics), inspired by the wave–particle duality hypotheses of Einstein (1905) and de Broglie (1924), among others. This was only the second fully adequate formulation of (non-relativistic) quantum theory. Introduced the now famous equation named after the author. Formulates the uncertainty principle as a key concept in quantum mechanics. (conference abstract) (full paper) Performed an experiment (with Lester Germer) which observed Bragg X-ray diffraction patterns from slow electrons; later independently replicated by Thomson, for which Davisson and Thomson shared the Nobel Prize in Physics in 1937. This confirmed de Broglie's hypothesis that matter has wave-like behaviour; in combination with the Compton effect discovered by Arthur Compton (who won the Nobel Prize for Physics in 1927), established the wave–particle duality hypothesis as a fundamental concept in quantum theory. Quantum mechanics as explained by one of the founders of the field, Paul Dirac. First edition published on 29 May 1930. The second to last chapter is particularly interesting because of its prediction of the positron. Mathematical Foundations of Quantum Mechanics, Beyer, R. T., trans., Princeton Univ. Press. 1996 edition: . Rigorous