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David LACOSTE Laboratoire de Physico-Chimie Théorique. ESPCI, 10 rue Vauquelin. Escalier F, 3ème étage droite. 75231 Paris cedex 05. France. Tél.: +33 (0)1 40 79 51 40 Fax: +33 (0)1 40 79 47 31 Mel: david@turner.pct.espci.fr

Short CV

Research

My research interests focus on the theory of soft condensed matter systems, and in particular on applications of non-equilibrium statistical physics to biological systems. For a recent account of my research activities, see my habilitation defended on october 9th, 2009 at ESPCI.

Talks

Fluctuation relations for molecular motors and dynamics of a single biofilament. Golden Jubilee IIT Kanpur (2010).

Habilitation : Fluctuations hors d'équilibre dans les milieux biologiques. ESPCI (2009).

Depolarization of backscattered light. ESPCI (2004).

Publications

Under review


• Role of ATP-hydrolysis in the dynamics of a single actin filament,
  P. Ranjith, K. Mallick, JF. Joanny, and D. Lacoste,
  [cond-mat].
  
  
• Effective zero-thickness model for a conductive membrane driven by an electric field,
  F. Ziebert, M. Z. Bazant, and D. Lacoste,
  [cond-mat].
  
  
• Fluctuation relation for molecular motors,
  D. Lacoste and K. Mallick,
  [cond-mat],
  
  



Published


• Fluctuation Theorem for the flashing ratchet model of molecular motors,
  D. Lacoste and K. Mallick,
  Phys. Rev. E, 80, 021923 (2009), [PDF], [cond-mat].
  
  
• Thermal expansion within a chain of magnetic colloidal particles,
  D. Lacoste, C. Brangbour, J. Bibette and J. Baudry,
  Phys. Rev. E, 80, 011401 (2009), [PDF], [cond-mat].
  
  
• Stochastic model for nucleosome sliding in the presence of DNA ligands,
  L. Mollazadeh-Beidokhi, J. Deseigne, D. Lacoste, F. Mohammad-Raffie and H. Schiessel,
  Phys. Rev. E, 79, 031922 (2009), [PDF], [cond-mat].
  
  
• Non-equilibrum self-assembly of a filament coupled to ATP/GTP hydrolysis,
  P. Ranjith, D. Lacoste, K. Mallick and JF. Joanny,
  Biophys. J., 96, 2146 (2009), [PDF], [cond-mat].
  
  
• Measuring colloidal forces with the magnetic chaining technique,
  R. Dreyfus, D. Lacoste, J. Bibette, and J. Baudry,
  Eur. Phys. J. E, 28, 113 (2009), [PDF], [cond-mat].
  
  
• Electrostatic and electrokinetic contributions to the elastic moduli of a driven membrane,
  D. Lacoste, G. I. Menon, M. Z. Bazant and J.-F. Joanny,
  Eur. Phys. J. E, 28, 243-264 (2009), [PDF], [cond-mat].
  
  
• Membrane tension lowering induced by protein activity,
  M. D. El Alaoui, D. Lacoste, J. Pécréaux, JF. Joanny, J. Prost, and P. Bassereau,
  Phys. Rev. Lett., 102, 038102 (2009), [PDF], [cond-mat].
  
  
• Fluctuation Theorem and large deviation function for a solvable model of a molecular motor,
  D. Lacoste, A. W. C. Lau, and K. Mallick,
  Phys. Rev. E, 78, 011915 (2008), [PDF], [cond-mat].
  
  
• Non-equilibrium fluctuations and mechanochemical couplings of a molecular motor,
  A. W. C. Lau, D. Lacoste, and K. Mallick,
  Phys. Rev. Lett. , 99, 158102 (2007), [PDF], [cond-mat].
  
  
• Fluctuations of a driven membrane in an electrolyte,
  D. Lacoste, M. Cosentino Lagomarsino, and JF. Joanny,
  Europhys. Lett. , 77, 18006 (2007), [PDF], [cond-mat].
  
  
• Dynamics of active membrane with internal noise,
  D. Lacoste and A. Lau,
  Europhys. Lett. , 70 (3), 418 (2005), [PDF], [cond-mat].
  
  
• Fluctuation spectrum of fluid membranes coupled to an elastic meshwork:
  jump of the effective surface tension at the mesh size
  J.-B. Fournier, D. Lacoste, E. Raphaël,
  Phys. Rev. Lett. 92, 018102 (2004), [PDF], [cond-mat].
  This paper has lead to a communication in the journal of the CNRS (in french).
  
  
• Geometric depolarization in patterns formed by backscattered light,
  D. Lacoste, V. Rossetto, F. Jaillon and H. Saint-Jalmes,
  Optics Letters, 29(17), 2040-2 (2004), [PDF], [cond-mat].
  
  
• Depolarization of backscattered linearly polarized light,
  L-F. Rochas Ochoa, D. Lacoste, R. Lenke, P. Schurtenberger and F. Scheffold,
  J. Opt. Soc. Am. A, 21(9), 1799-1804 (2004), [PDF], [cond-mat].
  
  
• Field-induced structures in miscible ferrofluid suspensions with and without latex spheres,
  M. Islam, K. Lin, D. Lacoste, T. Lubensky and A. Yodh,
  Phys. Rev. E, 67, 021402 (2003), [PDF]
  
  
• Phase transitions in lyotropic nematic gels,
  D. Lacoste, A. Lau and T. Lubensky
  Eur. Phys. J. E 8, 403 (2002),[PDF], [cond-mat].
  
  
• Effective index of refraction, optical rotation, and circular dichroism in isotropic liquid crystals,
  D. Lacoste, P. Collings and T. Lubensky,
  Phys. Rev. E, 65, 031717 (2002), [PDF], [cond-mat].
  
  
• Phase transitions in a ferrofluid at magnetic field induced microphase separation,
  D. Lacoste and T. Lubensky,
  Phys. Rev. E , 64, 041506 (2001), [PDF],[cond-mat].
  
  
• Coherent Backscattering of light in a magnetic field,
  D. Lacoste and B. van Tiggelen,
  Phys. Rev. E, 61(4), 4556-65 (2000), [PDF], [cond-mat].
  
  
• Transport theory for magneto-transverse light diffusion,
  D. Lacoste,
  Waves in Random Media, 10(3), 367-372 (2000), [PDF], [cond-mat].
  
  
• Magneto-Optics with diffuse light,
  D. Lacoste and B. van Tiggelen and G. Rikken,
  Physica B, 279 13-16, (2000), [PDF].
  
  
• Photonic Hall effect in ferrofluids: theory and experiments,
  D. Lacoste, F. Donatini, S. Neveu, S. Serughettti and B. van Tiggelen,
  Phys. Rev. E, 62(3), 3934-43 (2000), [PDF], [cond-mat].
  
  
• The Photonic Hall Effect in absorbing media,
  S. Wiebel, A. Sparenberg, G. Rikken, D. Lacoste and B. van Tiggelen,
  Phys. Rev. E, 62(6), 8636-9 (2000) [PDF].
  
  
• Transport Mean Free Path for Magneto-Transverse Light Diffusion,
  D. Lacoste and B. van Tiggelen,
  Europhys. Lett., 45(6), 721-725 (1999), [PDF], [cond-mat].
  
  
• Optics of a Faraday Mie sphere,
  D. Lacoste, B. van Tiggelen, G. Rikken and A. Sparenberg,
  J. Opt. Soc. Am. A, 15(6), 1632-42 (1998). [PDF], [cond-mat].
  
  
• Sonoluminescence from Single Bubbles in Nonaqueaous Liquids: New Parameter Space for Sonochemistry,
  K. Weninger, R. Hiller, BP. Barber, D. Lacoste and S. Putterman,
  J. Phys. Chem. 99, No. 39,  14195-7 (1995), [PDF].
  



Proceedings




• Growth and Collapse of Bubbles in Superfluid 4He,
  P. Roche, H. Lambare, E. Rolley, D. Lacoste, S. Balibar, C. Guthmann and HJ. Maris,
  Proceedings of the 21st International Conference on Low Temperature
  Physics, Suppl S1, Czech. J. Phys., 46, 381-2 (1996).
  
  
• Stokes parameters for light scattering from a Faraday-active sphere,
  B. van Tiggelen and D. Lacoste,
  Journal of Quantitative Spectroscopy and Radiative Transfer, 63:305-19,(1999), [PDF], [cond-mat]
  
  
• My dissertation: Light scattering in magneto-optical and chiral media,
  under supervision of B. van Tiggelen, [ZIP], with its first and last pages.



• Recent trends in the theory of magneto-scattering of light in Recent Trends in Theory of Physical Phenomena in High Magnetic Fields,
  B. A. van Tiggelen, G. Rikken, F. Pinheiro and D. Lacoste
  (edited by I.D. Vagner et al, Kluwer Academic (2003), pp 323-331).

Miscellaneous

I am teaching a Préceptorat for the course of M. Lagues on ‘Echelles d’espace et de temps’ at ESPCI.
More recently, I have been involved in the organization of workshops:
- in december 2004 for the GdR IMCODE on “Ondes dans les milieux complexes”
- in june 2005, “Journée de Biophysique de la montagne Ste-Geneviève”