Werner Heisenberg

In the subsequent series of papers with Max Born and Pascual Jordan, during the same year, his matrix formulation of quantum mechanics was substantially elaborated.

[4][a] Heisenberg also made contributions to the theories of the hydrodynamics of turbulent flows, the atomic nucleus, ferromagnetism, cosmic rays, and subatomic particles.

Five decades later he recalled those days as youthful fun, like "playing cops and robbers and so on; it was nothing serious at all";[12] his duties were restricted to "seizing bicycles or typewriters from 'red' administrative buildings", and guarding suspected "red" prisoners.

From 17 September 1924 to 1 May 1925, under an International Education Board Rockefeller Foundation fellowship, Heisenberg went to do research with Niels Bohr, director of the Institute of Theoretical Physics at the University of Copenhagen.

On June 7, after weeks of failing to alleviate a severe bout of hay fever with aspirin and cocaine,[29] Heisenberg retreated to the pollen-free North Sea island of Helgoland to focus on quantum mechanics.

[3][20][35][38] At 25 years old, Heisenberg gained the title of the youngest full-time professor in Germany and professorial chair[39] of the Institute for Theoretical Physics at the University of Leipzig.

During Heisenberg's tenure at Leipzig, the high quality of the doctoral students and post-graduate and research associates who studied and worked with him is clear from the acclaim that many later earned.

They included Erich Bagge, Felix Bloch, Ugo Fano, Siegfried Flügge, William Vermillion Houston, Friedrich Hund, Robert S. Mulliken, Rudolf Peierls, George Placzek, Isidor Isaac Rabi, Fritz Sauter, John C. Slater, Edward Teller, John Hasbrouck van Vleck, Victor Frederick Weisskopf, Carl Friedrich von Weizsäcker, Gregor Wentzel, and Clarence Zener.

[43] In 1928, the British mathematical physicist Paul Dirac had derived his relativistic wave equation of quantum mechanics, which implied the existence of positive electrons, later to be named positrons.

When Born read the paper, he recognized the formulation as one which could be transcribed and extended to the systematic language of matrices,[50] which he had learned from his study under Jakob Rosanes[51] at Breslau University.

[56] It was at that time announced that Heisenberg had won the Prize for 1932 "for the creation of quantum mechanics, the application of which has, inter alia, led to the discovery of the allotropic forms of hydrogen".

In contrast to Albert Einstein and Louis de Broglie, who were realists who believed that particles had an objectively true momentum and position at all times (even if both could not be measured), Heisenberg was an anti-realist, arguing that direct knowledge of what is "real" was beyond the scope of science.

The scientific method of analysing, explaining and classifying has become conscious of its limitations, which arise out of the fact that by its intervention science alters and refashions the object of investigation.

As applied in the university environment, political factors took priority over scholarly ability,[64] even though its two most prominent supporters were the Nobel Laureates in Physics Philipp Lenard[65] and Johannes Stark.

The process was lengthy due to academic and political differences between the Munich Faculty's selection and that of the Reich Education Ministry and the supporters of Deutsche Physik.

The invitees included Walther Bothe, Siegfried Flügge, Hans Geiger, Otto Hahn, Paul Harteck, Gerhard Hoffmann, Josef Mattauch and Georg Stetter.

[35][91] At a scientific conference on 26–28 February 1942 at the Kaiser Wilhelm Institute for Physics, called by the Army Weapons Office, Heisenberg presented a lecture to Reich officials on energy acquisition from nuclear fission.

[35][91] On 4 June 1942, Heisenberg was summoned to report to Albert Speer, Germany's Minister of Armaments, on the prospects for converting the Uranverein's research toward developing nuclear weapons.

[95][96] After the Uranverein project was placed under the leadership of the Reich Research Council, it focused on nuclear power production and thus maintained its kriegswichtig (importance for the war) status; funding therefore continued from the military.

In the summer, he dispatched the first of his staff at the Kaiser-Wilhelm Institut für Physik to Hechingen and its neighboring town of Haigerloch, on the edge of the Black Forest, for the same reasons.

The Kaiser-Wilhelm-Institut für Physik (KWIP, Kaiser Wilhelm Institute for Physics) had been bombed so it had mostly been moved in 1943 and 1944 to Hechingen and its neighbouring town of Haigerloch, on the edge of the Black Forest, which eventually became included in the French occupation zone.

This allowed the American task force of the Alsos Mission to take into custody a large number of German scientists associated with nuclear research.

[108][109] On 30 March, the Alsos Mission reached Heidelberg,[110] where important scientists were captured including Walther Bothe, Richard Kuhn, Philipp Lenard, and Wolfgang Gentner.

[20][35] In 1951, Heisenberg agreed to become the scientific representative of the Federal Republic of Germany at the UNESCO conference, with the aim of establishing a European laboratory for nuclear physics.

"[148] In 1961 Heisenberg signed the Memorandum of Tübingen alongside a group of scientists who had been brought together by Carl Friedrich von Weizsäcker and Ludwig Raiser.

[150] As prominent politicians, authors and socialites joined the debate on nuclear weapons, the signatories of the memorandum took a stand against "the full-time intellectual nonconformists".

"[157] Heisenberg, a devout Christian,[158][159] wrote: "We can console ourselves that the good Lord God would know the position of the [subatomic] particles, thus He would let the causality principle continue to have validity", in his last letter to Albert Einstein.

In the spin-off prequel series Better Call Saul, a German character named Werner directs the construction of the meth lab belonging to antagonist Gus Fring that Walt cooks in for much of Breaking Bad.

Heisenberg is also credited with building the atomic bomb used by the Axis in the Amazon TV series adaptation of the novel The Man in the High Castle by Philip K. Dick.

To accurately isolate matter prior to its entry into the transporter buffer, all particles must be located, their velocity observed, and tracked; the compensators allow this to happen.

Heisenberg in 1924
A visual representation of an induced nuclear fission event where a slow-moving neutron is absorbed by the nucleus of a uranium-235 atom, which fissions into two fast-moving lighter elements (fission products) and additional neutrons. Most of the energy released is in the form of the kinetic velocities of the fission products and the neutrons.
Replica of the German experimental nuclear reactor captured and dismantled at Haigerloch
Bust of Heisenberg in his old age, on display at the Max Planck Society campus in Garching bei München
A gravestone surrounded by vegetation. On it are the four names and dates, with August and Annie at the top on either side of a large cross. Below the cross Werner and Elisabeth are listed.
The grave of the Heisenberg family in Munich Waldfriedhof , including August Heisenberg (1869–1930), Annie Heisenberg (1879–1945), Werner Heisenberg (1901–1976), and Elisabeth Heisenberg (1914–1998)