Holger Bech Nielsen
Holger Bech Nielsen (born 25 August 1941) is a Danish theoretical physicist, Professor emeritus at the Niels Bohr Institute, at the University of Copenhagen, where he started studying physics in 1961.
Nielsen has made original contributions to theoretical particle physics specifically in the field of string theory. Independently of Nambu and Susskind, he was the first to propose that the Veneziano model was actually a theory of strings and this is why he is considered among the fathers of string theory. He was awarded the highly esteemed Humboldt Prize in 2001 for his scientific research. Several physics concepts are named after him, e.g. Nielsen-Olesen Vortex and the Nielsen-Ninomiya no-go theorem for representing chiral fermions on the lattice. In the original Dual-Models, which later would be recognized as the origins of string theory, the Koba-Nielsen variables are also named after him and his collaborator Ziro Koba.
In a series of recent (2009) papers uploaded on the arXiv.org web site, he and fellow physicist Masao Ninomiya proposed a radical theory to explain the seemingly improbable series of failures preventing the Large Hadron Collider (LHC) from becoming operational. The collider is intended to be used to find evidence of the hypothetical Higgs boson particle. They suggested that the particle might be so abhorrent to nature that its creation would ripple backward through time and stop the collider before it could create one, in a fashion similar to the time travel Grandfather paradox. Subsequently LHC claimed the discovery of Higgs Boson on 4 July 2012 
- Dennis Overbye (2009-10-12). "The Collider, the Particle and a Theory About Fate". New York Times.
- "Gruppe 2: Fysikkfag (herunder astronomi, fysikk og geofysikk)" (in Norwegian). Norwegian Academy of Science and Letters. Retrieved 7 October 2010.
- Nielsen, H. B. & Ninomiya, M. (2009) Test of Effect from Future in Large Hadron Collider; A Proposal
- Nielsen, H. B. & Ninomiya, M. (2009) Search for Future Influence from LHC
- Nielsen, H. B. & Ninomiya, M. (2009) Card game restriction in LHC can only be successful!
- Holger Bech Nielsen, personal page.
- Teorien om alting/The Theory of Everything, Internet Movie Database.
- Videnskaben eller Gud?/Science Or God?, webpage about the book in Danish.
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