Michel Fruchart

I am a CNRS researcher at Gulliver in ESPCI and PSL University. My research interests center on soft and hard condensed matter physics, including active matter, nonlinear dynamics, statistical physics, and hydrodynamics. Recent works focus on the effect of non-reciprocity on many-body systems, ranging from phase transitions to turbulence.

Before that, I was a postdoctoral fellow at the University of Chicago and at the Lorentz Institute for theoretical physics, working in the group of Vincenzo Vitelli. Even before, I worked on topological phases of periodically driven crystals as a PhD student at the Laboratoire de Physique of the ENS de Lyon with David Carpentier and Krzysztof Gawędzki.

E-mail: michel (dot) fruchart (at) espci (dot) fr
Address: Gulliver UMR CNRS 7083, ESPCI Paris, 10 rue Vauquelin, 75231 Paris cedex 05, France
Office: room C130

Publications

  1. Sociohydrodynamics: data-driven modelling of social behavior, Daniel S. Seara, Jonathan Colen, Michel Fruchart, Yael Avni, David Martin, Vincenzo Vitelli, preprint, arXiv:2312.17627
  2. Learning a conserved mechanism for early neuroectoderm morphogenesis, Matthew F. Lefebvre, Jonathan Colen, Nikolas H. Claussen, Fridtjof Brauns, Marion K. Raich, Noah Mitchell, Michel Fruchart, Vincenzo Vitelli, Sebastian J. Streichan, preprint, bioRxiv:10.1101/2023.12.22.573058
  3. Information theory for model reduction in stochastic dynamical systems, Matthew S. Schmitt, Maciej Koch-Janusz, Michel Fruchart, Daniel S. Seara, Vincenzo Vitelli, preprint, arXiv:2312.06608
  4. The non-reciprocal Ising model, Yael Avni, Michel Fruchart, David Martin, Daniel Seara, Vincenzo Vitelli, preprint, arXiv:2311.05471
  5. Trading particle shape with fluid symmetry: on the mobility matrix in 3D chiral fluids, Tali Khain, Michel Fruchart, Colin Scheibner, Thomas A. Witten, Vincenzo Vitelli, preprint, arXiv:2310.17528
  6. The transition to collective motion in nonreciprocal active matter: coarse graining agent-based models into fluctuating hydrodynamics, David Martin, Daniel Seara, Yael Avni, Michel Fruchart, Vincenzo Vitelli, preprint, arXiv:2307.08251
  7. Viscous tweezers: controlling particles with viscosity, Tali Khain, Michel Fruchart, Vincenzo Vitelli, preprint, arXiv:2307.04948
  8. Pattern formation by turbulent cascades, Xander M. de Wit, Michel Fruchart, Tali Khain, Federico Toschi, Vincenzo Vitelli, Nature 627, 515–521 (2024), arXiv:2304.10444
  9. Odd Viscosity and Odd Elasticity, Michel Fruchart, Colin Scheibner, Vincenzo Vitelli, Annual Review of Condensed Matter Physics 14, 471-510 (2023), arXiv:2207.00071
  10. Soft Metamaterials: Adaptation and Intelligence, Colin Scheibner, Michel Fruchart, Vincenzo Vitelli, preprint, arXiv:2205.01867
  11. Odd elasticity and topological waves in active surfaces, Michele Fossati, Colin Scheibner, Michel Fruchart, Vincenzo Vitelli, Phys. Rev. E 109, 024608 (2024), arXiv:2210.03669
  12. Exceptional points in nonlinear and stochastic dynamics, Cheyne Weis, Michel Fruchart, Ryo Hanai, Kyle Kawagoe, Peter B. Littlewood, Vincenzo Vitelli, preprint, arXiv:2207.11667
  13. The odd ideal gas: Hall viscosity and thermal conductivity from non-Hermitian kinetic theory, Michel Fruchart, Ming Han, Colin Scheibner, Vincenzo Vitelli, preprint, arXiv:2202.02037
  14. Internal wave crystals, Sasan J. Ghaemsaidi, Michel Fruchart, Severine Atis, preprint, arXiv:2111.07984
  15. Systematic generation of Hamiltonian families with dualities, Michel Fruchart, Claudia Yao, Vincenzo Vitelli, Phys. Rev. Research 5, 023099 (2023) arXiv:2108.11138
  16. Stokes flows in three-dimensional fluids with odd and parity-violating viscosities, Tali Khain, Colin Scheibner, Michel Fruchart, Vincenzo Vitelli, Journal of Fluid Mechanics 934, A23 (2022) arXiv:2011.07681
  17. Liquid-crystal-based topological photonics, Hamed Abbaszadeh, Michel Fruchart, Wim van Saarloos, Vincenzo Vitelli, PNAS 118 (2021), arXiv:2005.02476
  18. Non-reciprocal phase transitions, Michel Fruchart, Ryo Hanai, Peter B. Littlewood, Vincenzo Vitelli, Nature 592, 363–369 (2021) arXiv:2003.13176
  19. Fluctuating hydrodynamics of chiral active fluids, Ming Han, Michel Fruchart, Colin Scheibner, Suriyanarayanan Vaikuntanathan, Juan de Pablo, Vincenzo Vitelli, Nature Physics 17, 1260–1269 (2021) arXiv:2002.07679
  20. Symmetries and dualities in the theory of elasticity, Michel Fruchart, Vincenzo Vitelli, Phys. Rev. Lett. 124, 248001 (2020), arXiv:1912.02384
  21. A mechanism for anomalous transport in chiral active liquids, Zhenghan Liao, Ming Han, Michel Fruchart, Vincenzo Vitelli, Suriyanarayanan Vaikuntanathan, J. Chem. Phys. 151, 194108 (2019), arXiv:1909.03132
  22. Computation of topological phase diagram of disordered Pb1−xSnxTe using the kernel polynomial method, Daniel Varjas, Michel Fruchart, Anton R. Akhmerov, Pablo Perez-Piskunow Phys. Rev. Research 2, 013229 (2020), arXiv:1905.02215
  23. Dualities and non-Abelian mechanics, Michel Fruchart, Yujie Zhou, Vincenzo Vitelli, Nature 577, 636–640 (2020), arXiv:1904.07436
  24. Machine learning assisted measurement of local topological invariants, Marcello D. Caio, Marco Caccin, Paul Baireuther, Timo Hyart, Michel Fruchart, preprint, arXiv:1901.03346
  25. Topological waves in fluids with odd viscosity, Anton Souslov, Kinjal Dasbiswas, Michel Fruchart, Suriyanarayanan Vaikuntanathan, Vincenzo Vitelli, Phys. Rev. Lett. 122, 128001 (2019), arXiv:1802.09649
  26. Metamaterials: The effective way, Michel Fruchart & Vincenzo Vitelli, Nature Materials 17, 292–293 (2018)
  27. Waves cornered, Michel Fruchart & Vincenzo Vitelli, Nature 555, 318--319 (2018)
  28. Soft self-assembly of Weyl materials for light and sound, Michel Fruchart, Seung-Yeol Jeon, Kahyun Hur, Vadim Cheianov, Ulrich Wiesner, Vincenzo Vitelli, PNAS (2018), arXiv:1711.11019
  29. Phase rotation symmetry and the topology of oriented scattering networks, Pierre Delplace, Michel Fruchart, Clément Tauber, Phys. Rev. B 95, 205413 (2017), arXiv:1612.05769
  30. Complex classes of periodically driven topological lattice systems, Michel Fruchart, Phys. Rev. B 93, 115429 (2016), arXiv:1511.06755
  31. Probing (topological) Floquet states through DC transport, Michel Fruchart, Pierre Delplace, Joseph Weston, Xavier Waintal, David Carpentier, Physica E 75 (2016) 287-294, arXiv:1507.00152
  32. Construction and properties of a topological index for periodically driven time-reversal invariant 2D crystals, David Carpentier, Pierre Delplace, Michel Fruchart, Krzysztof Gawędzki, Clément Tauber, Nuclear Physics B 896 (2015) 779-834, arXiv:1503.04157
  33. Topological index for periodically driven time-reversal invariant 2D systems, David Carpentier, Pierre Delplace, Michel Fruchart, Krzysztof Gawędzki, Phys. Rev. Lett. 114, 106806 (2015), arXiv:1407.7747
  34. Parallel Transport and Band Theory in Crystals, Michel Fruchart, David Carpentier, Krzysztof Gawędzki, EPL 106, 60002 (2014), arXiv:1403.2836
  35. An Introduction to Topological Insulators, Michel Fruchart, David Carpentier, Comptes Rendus Physique 14 (2013) 779-815, arXiv:1310.0255

Book

  1. Physique expérimentale, Michel Fruchart, Pierre Lidon, Étienne Thibierge, Maxime Champion, Arnaud Le Diffon, De Boeck Supérieur, 2016, ISBN: 978-2-8073-0285-3