Superconducting quantum fluctuations in one dimension

Topological superconducting phases in one dimension

Quantum Physics in One Dimension

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Quantum Fluctuations in Superconducting Dots at Finite Temperatures

We study the thermodynamics of ultrasmall metallic grains with level spacing δ comparable or smaller than the pairing correlation energy, at finite temperatures, T> ∼ δ. We describe a method which allows to find quantum corrections to the effect of classical fluctuations. We present results for thermodynamic quantities in ordered grains and for the reentrant odd susceptibility in disordered gra...

Direct observation of quantum superconducting fluctuations in an insulating groundstate

We review our recent measurements of the complex AC conductivity of thin InOx films studied as a function of magnetic field through the nominal 2D superconductor-insulator transition. These measurements the first of their type to probe nonzero frequency reveals a significant finite frequency superfluid stiffness well into the insulating regime. Unlike conventional fluctuation superconductivity ...

Quantum Integrable Systems in One Dimension

The field of integrable systems is a vast one that has grown almost explosively in recent years. It is not remotely possible to review all the developments in the field in one hour, so I am restricting my attention to some particular topics. I shall only consider one dimensional quantum systems, or 1+1 as it is usually said, including the time dimension, but necessarily therefore including some...