Following the tradition from the previous years, the Universities of Leeds (Dr. Papic), Loughborough (Dr. Lazarides) and Nottingham (Dr. Bertini) will be running a joint hybrid seminar series on non-equilibrium physics during 2023/24. "Hybrid" means that some of the seminars will be delivered in person in one of the Universities and broadcast remotely in others, while some seminars will be fully online.
The seminars will be on Zoom and typically take place on Wednesdays at 3pm UK time:
Leeds-Loughborough-Nottingham Zoom Seminar
Meeting ID: 818 6363 6407
For a complete list of previous seminars in 2020/21, 2021/22 and 2022/23, please see the archive on the left.
Seminar schedule (evolving)
11/11/2023, 3pm: Dr. Ahsan Nazir (University of Manchester)
Abstract: Calculating the stochastic work done on a quantum system while strongly coupled to a reservoir is a formidable task, requiring the calculation of the full eigenspectrum of the combined system and reservoir. In this talk I will show that this issue can be circumvented by using a polaron transformation that maps the system into a new frame where weak-coupling theory can be applied. It is shown that the work probability distribution is invariant under this transformation, allowing one to compute the full counting statistics of work at strong reservoir coupling. Crucially this polaron approach reproduces the Jarzynski fluctuation theorem, thus ensuring consistency with the laws of stochastic thermodynamics. I will apply the formalism to a system driven across the Landau-Zener transition, where clear signatures in the work distribution arising from a non-negligible coupling to the environment are identified. These results provide a new method for studying the stochastic thermodynamics of driven quantum systems beyond Markovian, weak-coupling regimes.
O. Diba, H. J. D. Miller, J. Iles-Smith, and A. Nazir, arXiv:2302.08395
25/10/2023, 3pm: Dr. Mark Mitchison (Trinity College Dublin)