Speaker
Takato Yoshimura
(King’s College London)
Description
Fluctuations at hydrodynamic scales encapsulate invaluable information about the dynamics in many-body systems. While such hydrodynamic fluctuations in non-integrable systems are well-understood and machineries for describing them have been established, it was recently realised that those in integrable systems are of a fundamentally different nature.
In this talk, I will explain how hydrodynamic fluctuations differ between non-integrable and integrable systems and introduce a formalism to evaluate these fluctuations in integrable systems. I will then illustrate one instance where the difference gives rise to an unconventional phenomenon: anomalous fluctuations in the XXZ spin chain.