30th Marian Smoluchowski Symposium on Statistical Physics

Session

Session 5

5 Sept 2017, 11:00

Conveners

Session 5: Panel C

• Piotr Garbaczewski (University of Opole, Poland)

51. Quantum model of self-oscillations in chemical engines

Robert Alicki (University of Gdansk)

05/09/2017, 11:00

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...

21. Order in quantum compass and orbital $e_g$ models

Andrzej M. Oles (Jagiellonian University)

05/09/2017, 11:30

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...

108. Path integral formalism of quantum thermodynamics

Ken Funo (Peking University)

05/09/2017, 11:50

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...

13. Quantum measurements of work fluctuations

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

05/09/2017, 12:10

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...