Fluctuations and First-Passage Problems

17 Apr 2023, 09:00 → 18 Apr 2023, 18:00 Europe/Stockholm

room 4205, floor 4 (Albano Building 3)

Francesco Coghi (Stockholm University), Kristian Olsen (Stockholm University)

Venue

Nordita, Stockholm, Sweden

 

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Scope

In the last decades, the study of nonequilibrium physical systems have played a major role in the physics community. As remarkable signatures of nonequilibrium behaviour are found in the study of fluctuations of these processes, considerable effort is nowadays drawn towards uncovering general laws and theories of fluctuations. In particular, first-passage time observables have also been shown to be excellent indicators of out-of-equilibrium behaviour.

This workshop aims to bring together both experts and young researchers in the field to reflect on the current day status of fluctuation theories and of first-passage time observables, as well as future directions and open problems.

The workshop will cover theory as well as applications, e.g., to stochastic thermodynamics, climate science, etc. Attendance is open to theorists and experimentalists, physicists and applied mathematicians, interested in the topic.

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Themes and preliminary program schedule

We will have 4 invited talks (40+10 mins), 14 contributed talks (20+5 mins), and plenty of time to discuss. Talks will focus on fluctuation theories and first-passage time studies and will range from theory to applications and experiments.

We will accept contributed speakers until the program is full.

Time	17th April	18th April
9.00 - 9.30	Mingling - coffee and biscuits	Mingling - coffee and biscuits
9.30 - 11.30	Introduction - Francesco & Kristian 2 invited talks	2 invited talks
11.30 - 11.45	Break - coffee and biscuits	Break - coffee and biscuits
11.45 - 12.30	2 contributed talks	2 contributed talks
12.30 - 14.00	Lunch break	Lunch break
14.00 - 15.30	3 contributed talks	3 contributed talks
15.30 - 16.00	Fika	Fika
16.00 - 17.00	2 contributed talks	2 contributed talks Closing remarks - Francesco & Kristian

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Invited speakers

• Dr. Rosemary J. Harris --- https://www.ucl.ac.uk/~ucahrh0/
• Prof. Martin Evans --- https://www.ph.ed.ac.uk/people/martin-evans
• Dr. Aljaz Godec --- https://www.mpinat.mpg.de/godec
• Dr. Denis Grebenkov --- https://pmc.polytechnique.fr/pagesperso/dg/

Contributed speakers

• Dr. Francesco Mori
• Dr. Vera Melinda Gálfi 
• Dr. Gianmaria Falasco
• Dr. Deepak Gupta
• Prof. Ralf Eichhorn
• Dr. Izaak Neri 
• Dr. Pedro Harunari
• Dr. Ludovic Bellon
• Dr. Gianluca Teza
• Dr. Rémi Goerlich
• Toni Mendes
• Paul Robin
• Dr. Mohamad Rachid
• Dr. Thomas Guerin

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Accommodation and travel support

Travel and accommodation for invited speakers will be covered by Nordita, however all costs for dependents/family need to be met separately. Contributed speakers and participants should pay travel and accommodation themselves, besides exceptional cases for which Nordita will be able to offer some financial support.

Please be aware that unfortunately, scammers sometimes approach participants claiming to be able to provide accommodation and asking for credit card details. Please do not give this information to them. If you are in any doubt about the legitimacy of an approach, please get in contact with the organizers.

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Application/Registration

Registration for the workshop is now closed.

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Sponsored by:

Monday 17 April

09:00 → 09:20 Mingling on 6th floor

09:30 → 09:40 Welcome and practical information (floor 4)

09:40 → 10:30 Martin Evans - Stochastic resetting: how to avoid wandering off in the wrong direction.

10:30 → 11:20 Denis Grebenkov - Statistics of diffusive encounters

11:20 → 11:45 Coffee & tea break

11:45 → 12:10 Francesco Mori - Entropy production of stochastic resetting

12:10 → 12:35 Rémi Goerlich - Experimental tests of Landauer’s principle for stochastic resetting in a potential

12:35 → 14:00 Lunch break

14:00 → 14:25 Mohamad Rachid - The narrow escape problem in the unit disk

14:25 → 14:50 Ludovic Bellon - Revisiting Kramers escape rate for low-energy barrier and underdamped systems: with application to the construction of a virtual double-well potential via feedback

14:50 → 15:15 Gianmaria Falasco - On the life-time of dissipative metastable states

15:15 → 16:00 Fika break

16:00 → 16:25 Thomas Guerin - First passage times for stochastic processes with memory

16:25 → 16:50 Toni Mendes - Kinetics of imperfect reactions for non-Markovian random walks

19:00 → 22:00 Workshop dinner

Tuesday 18 April

09:00 → 09:30 Mingling on 6th floor

09:30 → 10:20 Aljaž Godec - Towards a sample path-based statistical mechanics

10:20 → 11:10 Rosemary Harris - Current fluctuations in reset and run-and-tumble processes

11:10 → 11:45 Coffee & tea break

11:45 → 12:10 Izaak Neri - Thermodynamic bounds on first-passage processes in nonequilibrium systems

12:10 → 12:35 Pedro Harunari - Thermodynamics at the beat of transitions

12:35 → 14:00 Lunch break

14:00 → 14:25 Vera Melinda Gálfi - Persistent extreme events in the climate system: a large deviation perspective

14:25 → 14:50 Ralf Eichhorn - Efficiency Fluctuations in Microscopic Machines

14:50 → 15:15 Deepak Gupta - Designing control protocol for active Ornstein-Uhlenbeck particle

15:15 → 16:00 Fika break

16:00 → 16:25 Gianluca Teza - Coarse-graining of continuous time random walks

16:25 → 16:50 Paul Robin - Disentangling 1/f noise from ion dynamics

16:50 → 17:00 Closing remarks