Per Bak
| Per Bak | |
|---|---|
| Born | 8 December 1948 Brønderslev, Denmark | 
| Died | 16 October 2002 (aged 53) Copenhagen, Denmark | 
| Nationality | Danish | 
| Alma mater | Technical University of Denmark Risø National Laboratory | 
| Known for | Self-organized criticality Bak–Sneppen model Bak–Tang–Wiesenfeld sandpile | 
| Scientific career | |
| Fields | Physicist | 
| Institutions | Brookhaven National Laboratory University of Copenhagen Santa Fe Institute Niels Bohr Institute Imperial College London | 
Per Bak (8 December 1948 – 16 October 2002) was a Danish theoretical physicist who coauthored the 1987 academic paper that coined the term "self-organized criticality."