### Conveners

#### Session 5: Panel C

- Piotr Garbaczewski (University of Opole, Poland)

Robert Alicki
(University of Gdansk)

9/5/17, 11:00 AM

oral

A standard textbook picture of solar, thermoelectric and fuel cells based on a direct transformation of light, heat or chemical energy into a direct current (DC) contradicts the basic principles of electrodynamics and thermodynamics. The proposed solution of this problem involves a single oscillating degree of freedom called work reservoir (depository) or a piston, which executes...

Andrzej M. Oles
(Jagiellonian University)

9/5/17, 11:30 AM

oral

Exchange interactions in orbital models are frustrated even on a
square lattice, where two $T=1/2$ pseudospin components
$T_i^{\gamma}(\theta)$ parameterized by angle $\theta\in(0,\pi/2]$ interact by terms $JT_i^{\gamma}(\theta)T_j^{\gamma}(\theta)$.
Maximal frustration in the quantum compass model with
$T_i^{\gamma}(\pi/2)\equiv\frac12\sigma_i^{\gamma}$, where
$\sigma_i^{\gamma}$ is...

Ken Funo
(Peking University)

9/5/17, 11:50 AM

oral

Path integral formalism of quantum mechanics and quantum field theory
has greatly influenced the theoretical developments of physics. For
example, a path integral description of open quantum systems has been
used to study the dissipative dynamics of the quantum systems, known as
the Caldeira-Leggett model of the quantum Brownian motion. Studies of
thermodynamics in the dissipative quantum...

Karen Hovhannisyan
(Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark)

9/5/17, 12:10 PM

oral

Work is one of the central notions in (statistical) mechanics and thermodynamics. In fact, it is *the* quantity that connects thermodynamics and mechanics. Unlike in the macroscopic regime, at the microscale, fluctuations of work become relevant and sometimes even dominant, which makes their characterization a question of fundamental importance. In classical mechanics, the solution is...