# Nathan Seiberg

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**Nathan Seiberg** (born September 22, 1956) is an Israeli American theoretical physicist, professor at Princeton's Institute for Advanced Study, and winner of the 2012 Breakthrough Prize in Fundamental Physics.

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## Quotes[edit]

- Gravity is not an option in string theory. It is a logical consequence of it!

- The
*quantum dualities*, which are known as S-duality or U-duality, extend the classical T-duality and lead to a beautiful and coherent picture of stringy dualities. These exchange highly quantum situations with semiclassical backgrounds, exchange different branes, etc. As in the classical dualities, among all dual descriptions there is at most one description which is natural because it is semiclassical. All other dual descriptions are very quantum mechanical.- (2006). "Emergent spacetime".
*arXiv preprint hep-th/0601234*.

- (2006). "Emergent spacetime".

- Supersymmetry arises naturally in string theory. (It was originally motivated by string theory.)
- The World's Largest Experiment (2013). (public talk at Tryst, Indian Institute of Technology Delhi)

- Ultimately, we hope to find a fundamental theory that explains everything with no input parameters.

- Whenever you work on something and try to solve one problem, and you end up helping or solving many other problems, it is a sign that what you are doing is good.
- as quoted by Sandhya Ramesh in: Interview: 'There's No Conflict Between Lack of Evidence of String Theory and Work Being Done on It'. The Wire, Bengaluru (7 January 2018).