# Pascual Jordan

> German physicist and politician (1902-1980)

**Wikidata**: [Q61761](https://www.wikidata.org/wiki/Q61761)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pascual_Jordan)  
**Source**: https://4ort.xyz/entity/pascual-jordan

## Summary
Pascual Jordan was a German physicist and politician (1902–1980) known for his contributions to theoretical physics, particularly in quantum mechanics and Jordan algebras. He was a professor at several German universities and received awards such as the Max Planck Medal and the Carl Friedrich Gauss Medal.

## Biography
- Born: October 18, 1902, in Hamburg, Germany
- Nationality: German
- Education: Studied at the University of Hamburg and the University of Göttingen
- Known for: Developing Jordan algebras and contributing to quantum mechanics
- Employer(s): University of Hamburg, Humboldt-Universität zu Berlin, University of Rostock, Leibniz University Hannover, University of Göttingen
- Field(s): Theoretical physics, mathematics

## Contributions
- **Jordan Algebras**: Developed the concept of Jordan algebras, which are commutative algebras satisfying the identity \((xy)x^2 = x(yx^2)\). This work is foundational in theoretical physics and mathematics.
- **Quantum Mechanics**: Made significant contributions to quantum mechanics, including the Jordan–Wigner transformation, which maps spin operators onto fermionic creation and annihilation operators.
- **Brans–Dicke Theory**: Collaborated on the Brans–Dicke theory, a scalar–tensor theory of gravitation.
- **Political Career**: Served as a member of the Sturmabteilung (SA), the paramilitary wing of the Nazi Party, during the early 1930s. Later, he held political positions, including membership in the Academy of Sciences and Literature Mainz.

## FAQs
### What was Pascual Jordan's primary field of work?
Pascual Jordan was a theoretical physicist and mathematician, known for his work in quantum mechanics and the development of Jordan algebras.

### Where did Pascual Jordan study?
Pascual Jordan studied at the University of Hamburg and the University of Göttingen.

### What awards did Pascual Jordan receive?
Pascual Jordan received the Max Planck Medal and the Carl Friedrich Gauss Medal.

### Where did Pascual Jordan teach?
Pascual Jordan taught at the University of Hamburg, Humboldt-Universität zu Berlin, University of Rostock, Leibniz University Hannover, and the University of Göttingen.

### What was Pascual Jordan's political affiliation?
Pascual Jordan was a member of the Sturmabteilung (SA) during the early 1930s and later held political positions, including membership in the Academy of Sciences and Literature Mainz.

## Why They Matter
Pascual Jordan's contributions to theoretical physics, particularly in quantum mechanics and the development of Jordan algebras, have had a lasting impact on the field. His work on the Jordan–Wigner transformation and the Brans–Dicke theory have been influential in understanding quantum systems and gravitational theories. Additionally, his political career and affiliations reflect the complex historical context of early 20th-century Germany.

## Notable For
- Developer of Jordan algebras, a fundamental concept in theoretical physics and mathematics.
- Contributor to quantum mechanics, including the Jordan–Wigner transformation.
- Collaborator on the Brans–Dicke theory, a significant scalar–tensor theory of gravitation.
- Member of the Sturmabteilung (SA) during the early 1930s.
- Recipient of the Max Planck Medal and the Carl Friedrich Gauss Medal.
- Professor at multiple prestigious German universities, including the University of Hamburg and Humboldt-Universität zu Berlin.

## Body
### Early Life and Education
Pascual Jordan was born on October 18, 1902, in Hamburg, Germany. He studied at the University of Hamburg and the University of Göttingen, where he developed a strong foundation in theoretical physics and mathematics.

### Academic Career
Jordan began his academic career at the University of Hamburg, where he made significant contributions to quantum mechanics and the development of Jordan algebras. He later taught at the Humboldt-Universität zu Berlin, the University of Rostock, Leibniz University Hannover, and the University of Göttingen. His work in these institutions laid the groundwork for his later contributions to theoretical physics.

### Scientific Contributions
Jordan's most notable scientific contributions include the development of Jordan algebras, which are commutative algebras satisfying the identity \((xy)x^2 = x(yx^2)\). This work has been foundational in theoretical physics and mathematics. He also made significant contributions to quantum mechanics, including the Jordan–Wigner transformation, which maps spin operators onto fermionic creation and annihilation operators. Additionally, he collaborated on the Brans–Dicke theory, a scalar–tensor theory of gravitation.

### Political Career
Jordan's political career began with his affiliation with the Sturmabteilung (SA), the paramilitary wing of the Nazi Party, during the early 1930s. Later, he held political positions, including membership in the Academy of Sciences and Literature Mainz. His political affiliations reflect the complex historical context of early 20th-century Germany.

### Awards and Recognition
Jordan received several prestigious awards, including the Max Planck Medal and the Carl Friedrich Gauss Medal. These awards recognized his significant contributions to theoretical physics and mathematics.

### Legacy
Pascual Jordan's legacy is marked by his groundbreaking work in quantum mechanics and the development of Jordan algebras. His contributions have had a lasting impact on the field of theoretical physics, influencing subsequent research and applications. Additionally, his political career and affiliations provide insight into the historical context of early 20th-century Germany.

## References

1. Integrated Authority File
2. BnF authorities
3. basic data about the members of the Bundestag
4. MacTutor History of Mathematics archive
5. [Angehörige des Bundestags / I. -. X. Legislaturperiode](http://www.niqel.de/bredel/news/mdb.pdf)
6. Find a Grave
7. [Source](https://ca.billiongraves.international/grave/Pascual-Jordan/38442604)
8. Mathematics Genealogy Project
9. International Standard Name Identifier
10. Virtual International Authority File
11. CiNii Research
12. [Source](https://kalliope-verbund.info/DE-611-BF-1453)
13. [Source](https://kalliope-verbund.info/DE-611-BF-111238)
14. SNAC
15. Brockhaus Enzyklopädie
16. Croatian Encyclopedia
17. Munzinger Personen
18. Library of Congress Authorities
19. Freebase Data Dumps. 2013
20. nobelprize.org
21. Autoritats UB
22. [Source](http://purl.org/pressemappe20/beaconlist/pe)
23. LIBRIS. 2018
24. Catalogo of the National Library of India