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Subir Sachdev
Subir Sachdev is a Professor of Physics at Harvard University specializing in condensed matter. He is known for his research on quantum phase transitions, and for a textbook on the subject. In particular, he is famous for exploiting a connection between the electronic properties of materials near a quantum phase transition and the quantum theory of black holes.〔
==Career==
Sachdev was educated in India before attending MIT and Harvard, where he obtained his Ph.D. degree in theoretical physics. He held professional positions at Bell Labs (1985–1987) and at Yale University (1987–2005), where he was a Professor of Physics, before returning to Harvard. He currently holds visiting positions at various universities.
Juan Maldacena discovered the AdS/CFT correspondence of string theory in 1997. In 2007, Sachdev, along with Christopher Herzog, Pavel Kovtun and Dam Thanh Son first used the AdS/CFT correspondence of string theory to study quantum critical points in condensed matter physics such as the superfluid-insulator transition in the 2+1 dimensional boson Hubbard model.〔(【引用サイトリンク】author=Luboš Motl ) (blog)〕 With Sean Hartnoll and Markus Müller, Sachdev developed related methods to apply to "strange metal" phases at generic particle densities. These condensed matter systems share the crucial property of having no quasiparticle excitations, and so their dynamics cannot be described by extensions of the Boltzmann equation ubiquitous in other systems.
In 2014, Sachdev collaborated on a paper in ''Science''〔http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.111.027202〕 which correctly predicted the appearance of charge-density waves in high temperature cuprate oxide superconductors. 〔http://www.wired.com/2014/05/scientists-may-have-decoded-one-of-the-secrets-to-superconductors/〕
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