Thoma GUERIN is a member of the team ‘Theoy of condensed matter’, in the ‘Statistical Physics‘ group.

Thèmes

New: >2-years post-doctoral position available in non-equilibrium statistical physics: first encounters in complex media

A post-doctoral position in theoretical out-of-equilibrium statistical mechanics is opening to work with me on first passage problems in complex media. The post-doctoral fellow will develop a theory to calculate encounter rates between mobile particles in heterogeneous media, and/or carry out investigations on the first passage problems for rare events. The position is funded for at least 2 years and could start around September 2022, although there is flexibility in the starting date. The position will remain opened until it is filled. Applicants should have a background in theoretical/statistical physics or related areas. Please do not hesitate to contact me for any informal inquiry regarding this offer.

More details on the project and the postdoctoral position can be found here: PostDoc_ComplexFPT_English.

Research interests

My current research activity aims to characterize theoretically the stochastic dynamics  of complex objects (polymers, interfaces, assemblies of molecular motors or active particles, ….) or simple objects moving in a complex environement (such as a tracer in a heterogeneous medium or viscoelastic fluid). The general context is to understand out-of-equilibrium properties of such complex motion, such as calculating effective diffusivities (thus characterizing how fast a cloud of initially close particles will spread) or first passage times to a target (in which case absorbing conditions impose non-equilibrium steady states). My approach is based on analytical calculations, completed by numerical simulations. I also develop certain theoretical approaches to better understand some experiments developed in the LOMA. More specifically, up to now, I have worked on

– the dispersion in heterogeneous media, notably in presence of obstacles, potentially sticky,

– the theory of first passage times for non-Markovian random walks with memory,

– the effect of boundaries on the collective dynamics of self-propelled robots,

– the formation of conical interfaces between two non-miscible fluids under the action of  a laser,

– the collective dynamics of molecular motors, which can display oscillations or bidirectional motion,

– the theory of conformational transitions in viral capsids.

First passage problem: what is the statistics of the duration of trajectories starting from a source point (green star) and finding a target (red sphere) for the first time ?

 

Collaborations

Collaborations

David Dean (LOMA)

Olivier Bénichou, Raphaël Voituriez, Maxim Dolgushev (Laboratoire de Physique Théorique de la Matière Condensée, Paris)

Hamid Kellay, Jean-François Boudet (LOMA)

Yann Louyer, Yacine Amarouchène (LOMA)

Ulysse Delabre, Jean-Pierre Delville (LOMA)

Publications

Main publications

List of my publications on Hal Archive



43 documents

Articles dans une revue

  • A. Alexandre, Thomas Guérin, M. Mangeat, D. S. Dean. How stickiness can speed up diffusion in confined systems. Physical Review Letters, American Physical Society, 2022, 128 (21), pp.210601. ⟨10.1103/PhysRevLett.128.210601⟩. ⟨hal-03685547⟩
  • Arthur Alexandre, Thomas Guérin, D S Dean. Generalized Taylor dispersion for translationally invariant microfluidic systems. Physics of Fluids, American Institute of Physics, 2021. ⟨hal-03418775⟩
  • M. Mangeat, Thomas Guérin, D. S Dean. Effective diffusivity of Brownian particles in a two dimensional square lattice of hard disks. Journal of Chemical Physics, American Institute of Physics, 2020, 152 (23), pp.234109. ⟨10.1063/5.0009095⟩. ⟨hal-03045638⟩
  • Frédéric R. Leroux, Thomas Guérin, Nadiia Pikun, Ryutaro Morioka, Armen Panossian, et al.. Synthesis and Use of Trifluoromethylthiolated Ketenimines. Chemistry - A European Journal, Wiley-VCH Verlag, 2020, ⟨10.1002/chem.202002723⟩. ⟨hal-02990038⟩
  • Xavier Bertin, Baptiste Mengual, Anouk de Bakker, Thomas Guérin, Kevin Martins, et al.. Recent Advances in Tidal Inlet Morphodynamic Modelling. Journal of Coastal Research, Coastal Education and Research Foundation, 2020, 95 (sp1), pp.1016. ⟨10.2112/SI95-198.1⟩. ⟨hal-02944789⟩
  • N. Levernier, O. Bénichou, R. Voituriez, T. Guérin. Kinetics of rare events for non-Markovian stationary processes and application to polymer dynamics. Physical Review Research, American Physical Society, 2020, 2 (1), ⟨10.1103/PhysRevResearch.2.012057⟩. ⟨hal-03083851⟩
  • Xavier B Bertin, Kévin Martins, Anouk de Bakker, Teddy Chataigner, Thomas Guérin, et al.. Energy Transfers and Reflection of Infragravity Waves at a Dissipative Beach Under Storm Waves. Journal of Geophysical Research. Oceans, Wiley-Blackwell, 2020, 125 (5), pp.e2019JC015714. ⟨10.1029/2019JC015714⟩. ⟨hal-02563121⟩
  • N. Levernier, O. Bénichou, R. Voituriez, Thomas Guérin. Kinetics of rare events for non-Markovian stationary processes and application to polymer dynamics. Physical Review Research, American Physical Society, In press. ⟨hal-02466797⟩
  • N. Levernier, M. Dolgushev, O. Benichou, R. Voituriez, T. Guérin. Survival probability of stochastic processes beyond persistence exponents. Nature Communications, Nature Publishing Group, 2019, 10 (1), pp.2990 (2019). ⟨10.1038/s41467-019-10841-6⟩. ⟨hal-02189196⟩
  • Thomas Guérin, Anouk de Bakker, Xavier Bertin. On the Bound Wave Phase Lag. Fluids, MDPI, 2019, 4 (3), pp.152. ⟨10.3390/fluids4030152⟩. ⟨hal-02416050⟩
  • yacine Amarouchene, Matthieu Mangeat, Benjamin Vidal Montes, Lukas Ondic, Thomas Guérin, et al.. Nonequilibrium Dynamics Induced by Scattering Forces for Optically Trapped Nanoparticles in Strongly Inertial Regimes. Physical Review Letters, American Physical Society, 2019, 122 (18), pp.183901 (1-6). ⟨10.1103/PhysRevLett.122.183901⟩. ⟨hal-02125301⟩
  • A. Girot, J. Petit, R. Saiseau, T. Guérin, H. Chraibi, et al.. Conical Interfaces between Two Immiscible Fluids Induced by an Optical Laser Beam. Physical Review Letters, American Physical Society, 2019, 122 (17), pp.174501. ⟨10.1103/PhysRevLett.122.174501⟩. ⟨hal-02181499⟩
  • Matthieu Mangeat, yacine Amarouchene, yann Louyer, Thomas Guérin, David S. Dean. Role of nonconservative scattering forces and damping on Brownian particles in optical traps. Physical Review E , American Physical Society (APS), 2019, 99 (5), ⟨10.1103/PhysRevE.99.052107⟩. ⟨hal-02125304⟩
  • A. Girot, J. Petit, R. Saiseau, T. Guérin, H. Chraibi, et al.. Conical Interfaces between Two Immiscible Fluids Induced by an Optical Laser Beam. Physical Review Letters, American Physical Society, 2019, 122 (17), ⟨10.1103/PhysRevLett.122.174501⟩. ⟨hal-02915826⟩
  • Wei-Jia Zhang, Xue-Hua Cui, Li-Hong Chen, Jian yang, Xue-Gong Li, et al.. Complete genome sequence of Shewanella benthica DB21MT-2, an obligate piezophilic bacterium isolated from the deepest Mariana Trench sediment. Marine Genomics, Elsevier, 2019, 44, pp.52-56. ⟨10.1016/j.margen.2018.09.001⟩. ⟨hal-02999450⟩
  • Antoine Deblais, Thomas Barois, T. Guérin, Pierre-Henri H Delville, Rémi Vaudaine, et al.. Boundaries Control Collective Dynamics of Inertial Self-Propelled Robots. Physical Review Letters, American Physical Society, 2018, 120 (18), pp.188002 (1-5). ⟨10.1103/PhysRevLett.120.188002⟩. ⟨hal-01792275⟩
  • N. Levernier, O. Benichou, T. Guérin, R. Voituriez. Universal first-passage statistics in aging media. Physical Review E , American Physical Society (APS), 2018, 98 (2), pp.022125. ⟨10.1103/physreve.98.022125⟩. ⟨hal-01955414⟩
  • M. Mangeat, T. Guérin, David S. Dean. Dispersion in two-dimensional periodic channels with discontinuous profiles. Journal of Chemical Physics, American Institute of Physics, 2018, 149 (12), pp.124105. ⟨10.1063/1.5045183⟩. ⟨hal-01955811⟩
  • Matthieu Mangeat, Thomas Guérin, David S. Dean. Dispersion in two dimensional channels—the Fick–Jacobs approximation revisited. Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2017, 2017 (12), pp.123205. ⟨10.1088/1742-5468/aa9bb5⟩. ⟨hal-01666827⟩
  • Thomas Guérin, David S. Dean. Universal time-dependent dispersion properties for diffusion in a one-dimensional critically tilted potential. Physical Review E , American Physical Society (APS), 2017, 95 (1), pp.012109 (1-7). ⟨10.1103/PhysRevE.95.012109⟩. ⟨hal-01452850⟩
  • T. Guérin. Analytical expressions for the closure probability of a stiff wormlike chain for finite capture radius. Physical Review E , American Physical Society (APS), 2017, 96 (2), pp.022501. ⟨10.1103/PhysRevE.96.022501⟩. ⟨hal-01578124⟩
  • Matthieu Mangeat, Thomas Guérin, David S. Dean. Geometry controlled dispersion in periodic corrugated channels. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2017, 118 (4), pp.40004. ⟨10.1209/0295-5075/118/40004⟩. ⟨hal-01578776⟩
  • Maxim Dolgushev, Denis A. Markelov, Florian Fürstenberg, Thomas Guérin. Local orientational mobility in regular hyperbranched polymers. Physical Review E , American Physical Society (APS), 2016, 94 (1), pp.012502 (1-9). ⟨10.1103/PhysRevE.94.012502⟩. ⟨hal-01391674⟩
  • T Guérin, N Levernier, O Bénichou, R Voituriez. Mean first-passage times of non-Markovian random walkers in confinement.. Nature, Nature Publishing Group, 2016, 534 (7607), pp.356-9. ⟨10.1038/nature18272⟩. ⟨hal-01344629⟩
  • T. Guérin, David S. Dean. Kubo formulas for dispersion in heterogeneous periodic nonequilibrium systems. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2015, 92 (6), pp.062103 (1-11). ⟨10.1103/PhysRevE.92.062103⟩. ⟨hal-01252573⟩
  • N. Levernier, M. Dolgushev, O. Bénichou, A. Blumen, T. Guérin, et al.. Non-Markovian closure kinetics of flexible polymers with hydrodynamic interactions. Journal of Chemical Physics, American Institute of Physics, 2015, 143 (20), pp.204108 (1-10). ⟨10.1063/1.4935966⟩. ⟨hal-01256795⟩
  • Maxim Dolgushev, Thomas Guérin, Alexander Blumen, Olivier Bénichou, Raphaël Voituriez. Contact Kinetics in Fractal Macromolecules. Physical Review Letters, American Physical Society, 2015, 115 (20), pp.208301 (1-5). ⟨10.1103/PhysRevLett.115.208301⟩. ⟨hal-01251841⟩
  • Thomas Guérin, David S. Dean. Force-induced dispersion in heterogeneous media. Physical Review Letters, American Physical Society, 2015, 115 (2), pp.020601 (1-5). ⟨10.1103/PhysRevLett.115.020601⟩. ⟨hal-01182313⟩
  • Olivier Benichou, Thomas Guérin, Raphaël Voituriez. Mean first-passage times in confined media: from Markovian to non-Markovian processes. Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2015, 48 (16), pp.1630001 (1-43). ⟨10.1088/1751-8113/48/16/163001⟩. ⟨hal-01146165⟩
  • Nuria García-Bueno, Justine Dumay, Thomas Guérin, Vincent Turpin, Christine Paillard, et al.. Seasonal variation in the antivibrio activity of two organic extracts from two red seaweed: Palmaria palmata and the introduced Grateloupia turuturu against the abalone pathogen Vibrio harveyi. Aquatic Living Resources, EDP Sciences, 2015, 28 (2-4), pp.81-87. ⟨10.1051/alr/2016003⟩. ⟨hal-02556216⟩
  • David S. Dean, Thomas Guérin. Approach to asymptotically diffusive behavior for Brownian particles in media with periodic diffusivities. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2014, 90 (6), pp.062114 (1-6). ⟨10.1103/PhysRevE.90.062114⟩. ⟨hal-01119884⟩
  • T Guérin, M Dolgushev, O Bénichou, R Voituriez, A Blumen. Cyclization kinetics of Gaussian semiflexible polymer chains. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2014, 90 (5), pp.052601 (1-10). ⟨10.1103/PhysRevE.90.052601⟩. ⟨hal-01103320⟩
  • Maxim Dolgushev, Thomas Guérin, Alexander Blumen, Olivier Benichou, Raphaël Voituriez. Gaussian semiflexible rings under angular and dihedral restrictions. Journal of Chemical Physics, American Institute of Physics, 2014, 141 (1), pp.014901 (1-13). ⟨10.1063/1.4885445⟩. ⟨hal-01063638⟩
  • Thomas Guérin, O. Benichou, R. Voituriez. Reactive conformations and non-Markovian reaction kinetics of a Rouse polymer searching for a target in confinement. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2013, 87 (3), ⟨10.1103/PhysRevE.87.032601⟩. ⟨hal-01659689⟩
  • Thomas Guérin, O. Benichou, R. Voituriez. Reactive conformations and non-Markovian cyclization kinetics of a Rouse polymer. Journal of Chemical Physics, American Institute of Physics, 2013, 138 (9), ⟨10.1063/1.4792437⟩. ⟨hal-01659690⟩
  • Thomas Guérin, O. Benichou, R. Voituriez. Non-Markovian polymer reaction kinetics. Nature Chemistry, Nature Publishing Group, 2012, 4 (7), pp.568-573. ⟨10.1038/nchem.1378⟩. ⟨hal-01659691⟩
  • Thomas Guérin, J. Prost, J.-F. Joanny. Dynamical behavior of molecular motor assemblies in the rigid and crossbridge models. European Physical Journal E: Soft matter and biological physics, EDP Sciences: EPJ, 2011, 34 (6), ⟨10.1140/epje/i2011-11060-5⟩. ⟨hal-01659692⟩
  • Thomas Guérin, J. Prost, J.-F. Joanny. Motion Reversal of Molecular Motor Assemblies due to Weak Noise. Physical Review Letters, American Physical Society, 2011, 106 (6), ⟨10.1103/PhysRevLett.106.068101⟩. ⟨hal-01659694⟩
  • J.-F. Joanny, Thomas Guérin, J. Prost. Bidirectional motion of motor assemblies and the weak-noise escape problem. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2011, 84 (4), ⟨10.1103/PhysRevE.84.041901⟩. ⟨hal-01659695⟩
  • Pierre-yves Placais, Martial Balland, Thomas Guérin, Jean-François Joanny, Pascal Martin. Spontaneous Oscillations of a Minimal Actomyosin System Under Elastic Loading. Physical Review Letters, American Physical Society, 2010, 103 (15), pp.158102. ⟨10.1103/PhysRevLett.103.158102⟩. ⟨hal-01659711⟩
  • Thomas Guérin, J. Prost, Pascal Martin, Jean-François Joanny. Coordination and collective properties of molecular motors: theory. Current Opinion in Cell Biology, Elsevier, 2010, 22 (1), pp.14-20. ⟨10.1016/j.ceb.2009.12.012⟩. ⟨hal-01659698⟩
  • Thomas Guérin, J. Prost, J.-F. Joanny. Dynamic Instabilities in Assemblies of Molecular Motors with Finite Stiffness. Physical Review Letters, American Physical Society, 2010, 104 (24), ⟨10.1103/PhysRevLett.104.248102⟩. ⟨hal-01659697⟩
  • Thomas Guérin, Robijn Bruinsma. Theory of conformational transitions of viral shells. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2007, 76 (6), ⟨10.1103/PhysRevE.76.061911⟩. ⟨hal-01659699⟩

[31] N Levernier, M Dolgushev, O Benichou, R Voituriez, T Guérin, Survival probability of stochastic processes beyond persistence exponents, Nature communications 10 (1), 2990 (2019)
[30] A Girot, J Petit, R Saiseau, T Guérin, H Chraibi, U Delabre, JP Delville, Conical Interfaces between Two Immiscible Fluids Induced by an Optical Laser Beam, Phys. Rev. Lett., 122 (17), 174501 (2019)
[29] Y Amarouchene, M Mangeat, BV Montes, L Ondic, T Guérin, DS Dean, Y Louyer, Nonequilibrium dynamics induced by scattering forces for optically trapped nanoparticles in strongly inertial regimes, Phys. Rev. Lett. 122 (18), 183901 (2019)
[25] A. Deblais, T. Barois, T. Guerin, P-H. Delville, R. Vaudaine, J. S. Lintuvuori, J. F. Boudet, J. C Baret, H. Kellay, Boundaries Control Collective Dynamics of Inertial Self-Propelled Robots. Phys. Rev. Lett., 120, 188002 (2018).
[19] T. Guérin, N. Levernier, O. Bénichou, R. Voituriez, Mean first-passage times of non-Markovian random walkers in confinement, Nature, 534, 356-359 (2016)
[16] M. Dolgushev, T. Guérin, A. Blumen, O. Bénichou, R. Voituriez, Contact kinetics in fractal macromolecules, Phys. Rev. Lett., 115, 208301 (2015)
[15] T. Guérin, D.S. Dean, Force-Induced Dispersion in Heterogeneous Media, Phys. Rev. Lett., 115, 020601 (2015)
[8] T. Guérin, O. Bénichou, and R. Voituriez, Non Markovian polymer reaction kinetics, Nature Chemistry, 4, 568-573 (2012)
[5] T. Guérin, J. Prost, and J.-F. Joanny, Motion Reversal of Molecular Motor Assemblies due to Weak Noise, Phys. Rev. Lett., 106, 068101 (2011)
[4] T. Guérin, J. Prost, and J.-F. Joanny, Dynamic Instabilities in Assemblies of Molecular Motors with Finite Stiffness, Phys. Rev. Lett., 104, 248102 (2010)
[2] P.-Y. Plaçais, M. Balland, T. Guérin, J.-F. Joanny, and P. Martin, Spontaneous Oscillations of a Minimal Actomyosin System under Elastic Loading, Phys. Rev. Lett., 103, 158102 (2009)

 

Curriculum vitae

Curriculum vitae

Informations à venir…

GUERIN Thomas

 

 

 

 

 

Thomas GUERIN

Laboratoire Ondes et Matière d’aquitaine (LOMA)
351 cours de la libération
33405 Talence Cedex

Phone : + 33 (0)5 40 00 28 30
Fax : + 33 (0)5 40 00 69 70
E-mailthomas.guerin@u-bordeaux.fr