Statistical Mechanics of Quantum Dynamics

Session

Friday afternoon

27 May 2016, 16:00

Mariehamn, Åland

264. Superconducting phase-coherent caloritronics

Prof. Francesco Giazotto (Scuola Normale Superiore)

27/05/2016, 16:00

The Josephson effect [1] represents perhaps the prototype of macroscopic phase coherence and is at the basis of the most widespread interferometer, i.e., the superconducting quantum interference device (SQUID). Yet, in analogy to electric interference, Maki and Griffin [2] predicted in 1965 that thermal current flowing through a temperature-biased Josephson tunnel junction is a...

265. Observation of dynamical Lee-Yang zeros

Prof. Christian Flindt (Aalto)

27/05/2016, 16:45

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...

266. Quantum Jump Method with a Finite Environment

Prof. Tapio Ala-Nissila (Aalto)

27/05/2016, 17:30

Measurement of work done on a driven open quantum system remains a major challenge in quantum thermodynamics. A calorimetric detection method has been proposed by J. Pekola and collaborators [1] as a feasible experimental scheme to measure work and fluctuation relations in open quantum systems. However, the detection requires a finite size for the environment, which influences the system...