Pedro E. Harunari

Hello, my name is Pedro. I'm currently a postdoctoral researcher at Aix Marseille University under the supervision of Pierre Ronceray, working in statistical physics. Previously, I obtained my Ph.D. in physics from the University of São Paulo (Brazil) in Nov/2022, supervised by Prof. Carlos E. Fiore, and worked as postdoc under Prof. Massimiliano Esposito until Sep/2025.

My research revolves around understanding what stochastic (thermo)dynamics can reveal about a system that cannot be fully observed. In recent decades, theoretical investigations have given us numerous exciting results on the behavior of noisy nonequilibrium systems. However, compelling applications are quite elusive as they demand a lot of precise information, while real systems combine phenomena across different scales and of diverse nature, all obscured by measurement noise. Mindful coarse-graining schemes, appropriate statistical treatments, and results tailored for partially observed systems can be explored to accommodate realistic time series from real-world systems into the framework of stochastic thermodynamics and information theory, tightening our grasp on nature’s workings and our ability to make the most of them.

Contact: pedroharunari [at] gmail.com

My academic production

19. A framework for fluctuating times and counting observables in stochastic excursions
    (preprint)

18. Counting observables in stochastic excursions
    (preprint)

17. Mutual Multilinearity of Nonequilibrium Network Currents
    (SciPost Physics)

16. Coplanarity of rooted spanning-tree vectors
    (Letters in Mathematical Physics)

15. Dissipation at limited resolutions: Power law and detection of hidden dissipative scales
    (Journal of Statistical Mechanics)

14. Inference of entropy production for periodically driven systems
    (Physical Review E)

13. Mutual linearity of nonequilibrium currents
    (Physical Review Letters as Editors' Suggestion)

12. Uncovering nonequilibrium from unresolved events
    (Physical Review E)

11. Fluctuation relation at the beat of many currents
    (Journal of Physics A: Mathematical and Theoretical)

10. Nonequilibrium thermodynamics of the majority vote model
    (Entropy as Feature paper)

9. Fluctuation relation at the beat of a current
   (Physical Review E as Letter)

8. Learning from the statistics of a few visible transitions
   (Physical Review X)

7. Interacting Brownian particles engine
   (Physical Review E)

6. Current fluctuations in nonequilibrium discontinuous phase transitions
   (Physical Review E)

5. Importance of protocol asymmetry in heat engines
   (Physical Review Research)

4. Comparing different TURs for periodic systems
   (Journal of Physics A: Mathematical and Theoretical)

3. Entropy production characterizing phase transitions
   (Physical Review E)

2. Ingredients for a discontinuous transition in the MV
   (Scientific Reports)

1. Additional phase transition in the majority vote
   (Physical Review E)

(Post)Modern Thermodynamics Lecture Notes

In December 2022, we organized a school on the basics and recent unfoldings of nonequilibrium thermodynamics. As a result, we prepared lecture notes (published in SciPost Physics Lecture Notes) that form a great resource for students and researchers interested in the field.

Non-academic interests

I am passionate about playing guitar and carefully listening to music. I also enjoy discussions about rationality, cycling, football, bouldering, great coffee, and not great coffee.