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Colloquium: Quantum Fluctuations and Phase Transitions

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Nandini Trivedi, Ohio State University
16 April 2015 from 4:00 PM to 5:00 PM
117 Osmond Laboratory
Contact Name
Jainendra Jain
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 I will discuss the role of quantum fluctuations in driving phase transitions and contrast them with the better understood thermally driven phase transitions. I will show how standard paradigms break down and novel phases of matter emerge in the context of superconductor-insulator phase transitions and discuss our predictions for experimental probes through local spectroscopies and dynamics. These concepts have overlaps with cold atoms and string theory that I will illustrate.

[1] Bouadim, Loh, Randeria and Trivedi, “Single- and two-particle energy gaps across the disorder-driven superconductor–insulator transition”, Nature Physics 7, 884 (2011).

[2] Swanson, Loh, Randeria and Trivedi, “Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition”, Phys. Rev. X 4, 021007 (2014)