Speaker
Prof.
Christian Flindt
(Aalto)
Description
Lee-Yang zeros are points in the complex plane of an
external field where the partition function vanishes and the
free energy diverges. In the thermodynamic limit, the
Lee-Yang zeros approach the real value of the field for
which a phase transition occurs. Lee-Yang zeros have been
investigated theoretically, but experimental observations of
Lee-Yang zeros remain scarce. Here, I describe our method
for measuring Lee-Yang zeros and demonstrate how dynamical
Lee-Yang zeros can be observed from the real-time detection
of Andreev transitions across two tunneling barriers. The
position of the Lee-Yang zeros has implications for the
large-deviation statistics as I show. I conclude by
identifying possible avenues for further developments.
Primary author
Prof.
Christian Flindt
(Aalto)
