Samir D. Mathur

Samir D. Mathur is a theoretical physicist who specializes in string theory and black hole physics. Mathur is a professor in the Department of Physics at The Ohio State University and a member of the University's High Energy Theory Group. He was a faculty member at Massachusetts Institute of Technology from 1991–99 and held postdoctoral positions at Harvard University and the Tata Institute of Fundamental Research.[1]

Mathur's research is focused on string theory, black holes, the AdS/CFT correspondence, and cosmology. He is best known for developing the Fuzzball conjecture as a resolution of the black hole information paradox. The Fuzzball conjecture asserts that the fundamental description of black holes is given by a quantum bound state of matter which has the same size as the corresponding classical black hole.[2] This quantum bound state replaces the event horizon and singularity, and the classical black hole metric is claimed to be an approximate effective description.[3]

In 2009 Mathur published a strong version of the black hole information paradox, strengthening Stephen Hawking's original version by demonstrating that small local corrections to Hawking's semiclassical analysis cannot restore unitarity.[4] This result was obtained by applying Strong Subadditivity of Quantum Entropy to the evaporation of Hawking radiation.[4] This led to a renewed interest in the information paradox and the development of the 2012 black hole firewall paradox.[5][6][7]

References

  1. ↑ "Faculty information sheet". The Ohio State University. Retrieved 2015-03-29.
  2. ↑ Samir D. Mathur. "The Fuzzball proposal for black holes: An Elementary review". Fortsch. Phys. 53 (2005): 793. arXiv:hep-th/0502050Freely accessible.
  3. ↑ Samir D. Mathur (2012). "Black Holes and Beyond". Annals of Physics. 327: 2760. arXiv:1205.0776Freely accessible. doi:10.1016/j.aop.2012.05.001.
  4. 1 2 Samir D. Mathur. "The Information paradox: A Pedagogical introduction". Class. Quant. Grav. 26 (2009): 224001. arXiv:0909.1038Freely accessible.
  5. ↑ Jennifer Ouellette, "The Fuzzball Fix for a Black Hole Paradox", Quanta magazine, June 23, 2015. https://www.quantamagazine.org/20150623-fuzzballs-black-hole-firewalls
  6. ↑ Borun D. Chowdhury, Andrea Puhm, "Decoherence and the fate of an infalling wave packet: Is Alice burning or fuzzing?", Phys. Rev. D 88, 063509 (2013)
  7. ↑ Benjamin A. Burrington, Amanda W. Peet, Ida G. Zadeh, "Operator mixing for string states in the D1-D5 CFT near the orbifold point", Phys. Rev. D 87 106001 (2013)

External links


This article is issued from Wikipedia - version of the 10/22/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.