Quantum entanglement and the phases of matter

In many modern materials, electrons quantum-entangle with each other across long distances, and produce new phases of matter, such as high temperature superconductors. We face the challenge of describing the entanglement of 10^{23} electrons, which is being met by many ideas. A promising recent approach uses string theory.  

This theory was originally constructed as a unification of the quantum field theory of elementary particles with Einstein's theory of gravitation. Unexpectedly, the "dualities" of string theory have given us a new perspective on long-range entanglement in quantum models which describe electrons in modern materials in easily accessible laboratory environments.

	About the speaker: Prof. Sachdev obtained his Ph.D. in theoretical Physics from Harvard University and was a faculty in Yale University before the current position in Harvard University. He is a theoretical condensed matter Physicist. Some of his main research interests are quantum phase transitions to understand the non-zero temperature dynamics of correlated electron systems,  study of emergent, collective properties of a fluid of mutually repelling quantum electrons, superconducting nanowires, and electron interactions in graphene. He is a Fellow of the American Physical Society and Alfred P. Sloan Foundation.