JRC 2015

Pour nous contacter

Pour nous contacter

Jean-Marc Berroir
Directeur du Labex
directeur@phys.ens.fr

Cécile Margossian
Directrice adjointe du Labex
cecile.margossian@phys.ens.fr

Junior Research Chairs

Chaque année, le Labex recrute troix nouveaux JRC.
Pour en savoir plus sur la procédure de recrutement et le calendrier, cliquez ici.
Voir également ci-dessous l’affiche ‘Creating links that last a lifetime’.

Master de Physique Fondamentale

L’appel à candidatures pour la session 2015/2016 est cloturé :

Pour toute question administrative concernant le master ICFP, vous pouvez nous contacter à l’adresse suivante :
applicationicfp@phys.ens.fr

JRC holders 2015-2018

Joshua Mc Graw

Short scientific biography and research activities

Josh is an experimental soft condensed matter physicist. He studied physics at Dalhousie University (Canada) as an undergraduate, before moving to McMaster University (Canada) to work in the Dalnoki-Veress group, obtaining a PhD in confined polymer physics, organic glasses, and thin film flows in 2012. Then, he worked until 2015 in the Jacobs group at Saarland University (Germany) as an NSERC postdoctoral fellow. There, his investigations focussed mainly on the slip hydrodynamic boundary condition. In all of these studies, central guides were the fascinating properties of surfaces and interfaces, and their effects in flows of sub-micrometric systems. As a JRC in LPS, using his PSL and international collaborative network, Josh intends to accentuate research in these topics at the nanoscale, along with a move towards elastohydrodynamics — a rising field crucial to soft and bio systems.

Selected publications :

S. Haefner, M. Benzaquen, O. Bäumchen, T. Salez, R. Peters, J.D. McGraw, K. Jacobs, E. Raphaël, K. Dalnoki-Veress, Influence of Slip on the Plateau-Rayleigh Instability on a Fibre, Nature Communications (in press) ; arXiv:1501.02194.
J.D. McGraw, O. Bäumchen, M. Klos, S. Haefner, M. Lessel, S. Backes and K. Jacobs, Nanofluidics of thin polymer films : Linking the slip boundary condition at solid-liquid interfaces to macroscopic pattern formation and microscopic interfacial properties, Advances in Colloid and Interface Science, 210 (2014) 13.
Y. Chai, T. Salez, J.D. McGraw, M. Benzaquen, K. Dalnoki-Veress, E. Raphaël, J. Forrest, A Direct Quantitative Measure of Surface Mobility in a Glassy Polymer, Science, 343 (2014) 994.
J.D. McGraw, T. Salez, O. Bäumchen, E. Raphaël, K. Dalnoki-Veress, Self-Similarity and Energy Dissipation in Stepped Polymer Films, Physical Review Letters, 109 (2012) 128303.
S. Cormier, J.D. McGraw, T. Salez, E. Raphaël, K. Dalnoki-Veress, Beyond Tanner’s Law : Crossover Between Spreading Regimes of a Viscous Droplet on an Identical Film, Physical Review Letters, 109 (2012) 154501.

 Stephen H. Donaldson

I received my PhD in chemical engineering from UC Santa Barbara in 2014 under the direction of Prof. Jacob Israelachvili and Prof. Bradley Chmelka. My PhD research focused on measuring physical surface interactions in aqueous colloidal, polymeric, and lipid membrane systems. During my PhD, I helped develop an interaction potential to describe hydrophobic interactions in self-assembling systems, including lipid and surfactant membranes, nanoparticle assemblies, and functionalized interfaces. We also examined controlled adhesives by applying stimulus (light, electrochemistry, pH) or altering surface functionality (hydrophobic, hydrophilic, charged).
My personal research interests have recently transitioned towards biophysics, including biological adhesion, membrane fusion, protein-membrane interactions, and ligand-receptor interactions. As a JRC at ENS, I will collaborate with groups in the Laboratory of Statistical Physics to elucidate membrane adhesion and fusion mechanisms in a diverse set of biological systems, with applications such as neurotransmitter release, G-protein coupled receptor signaling, Alzheimer’s disease progression, and fusion proteins.

Selected publications
“Real time intermembrane force measurements and imaging of lipid domain morphology during hemifusion” D. W. Lee, K. Kristiansen, S. H. Donaldson Jr, N. Cadirov, X. Banquy, J. N. Israelachvili, accepted to Nature Communications, April 2015.
“Developing a general interaction potential for hydrophobic and hydrophilic interactions” S. H. Donaldson Jr, A. Røyne, K. Kristiansen, M. V. Rapp, S. Das, M. A. Gebbie, D. W. Lee, P. Stock, M. Valtiner, J. N. Israelachvili, Langmuir (2015), 31, 2051-2064.
“Asymmetric electrostatic and hydrophobic-hydrophilic interaction forces between mica surfaces and silicone polymer thin films” S. H. Donaldson Jr, S. Das, M. A. Gebbie, M. V. Rapp, L. C. Jones, Y. Roiter, P. H. Koenig, Y. Gizaw, J. N. Israelachvili, ACS Nano (2013), 7 (11), 10094-10104.
“Interactions and visualization of bio-mimetic membrane detachment at smooth and nano-rough gold electrode surfaces” S. H. Donaldson Jr, M. Valtiner, M. A. Gebbie, J. Harada, J. N. Israelachvili, Soft Matter (2013), 9 (21), 5231-5238.
“Hydrophobic interactions modulate self-assembly of nanoparticles” A. Sanchez-Iglesias, M. Grzelczak, T. Altantzis, B. Goris, J. Perez-Juste, S. Bals, G. Van Tendeloo, S. H. Donaldson Jr, B. F. Chmelka, J. N. Israelachvili, L. M. Liz-Marzan, ACS Nano (2012), 6 (12), 11059-11065.
“General hydrophobic interaction potential for surfactant/lipid bilayers from direct force measurments between light-modulated bilayers” S. H. Donaldson Jr, C. T. Lee, B. F. Chmelka, J. N. Israelachvili, PNAS (2011), 108 (38), 15699-15704.

 Leonardo Mazza

Short scientific biography and research activities

After my undergraduate studies at the University of Pisa and at Scuola Normale, in 2008 I moved to Munich to pursue my PhD in the group of Ignacio Cirac at the Max-Planck-Institut of Quantum Optics, obtained in 2012. During my graduate studies I was introduced to the subjects of ultra-cold atoms and quantum simulations, with a strong focus on topological phases of matter. Afterwards, I moved back to Pisa for a post-doc in the group of Rosario Fazio, where I sharpened my skills in the numerical simulations of one-dimensional systems and got interested in out-of-equilibrium quantum physics.

I am currently working on the effect of interactions in cold atomic gases coupled to synthetic gauge potentials and on the possible identification of topological phases of matter in such setups. Parallely, I joined the study of Majorana fermions in low-dimensional superconductors, focussing both on the development of the corresponding number-conserving theory and on the understanding of the quantum-information potential of such quasi-particles. Finally, employing numerical techniques especially suited for one-dimensional systems, I am studying several aspects of their non-equilibrium physics, from energy transport to dissipation.

Selected publications

1) Localized Majorana-like modes in a number conserving setting : An exactly solvable model. Iemini, Mazza, Rossini, Diehl and Fazio, arXiv:1504.04230 (2015).

2) Magnetic crystals and helical liquids in alkaline-earth fermionic gases.
Barbarino, Taddia, Rossini, Mazza and Fazio, arXiv:1504.00164 (2015).

3) Robustness of quantum memories based on Majorana zero modes.
Mazza, Rizzi, Lukin and Cirac, PRB 88, 205142 (2013).

4) Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mott Insulators.
Endres, Cheneau, Fukuhara, Weitenberg, Schauß, Gross, Mazza, Bañuls, Pollet, Bloch and Kuhr, Science 334, 200 (2011).

5) Wilson Fermions and Axion Electrodynamics in Optical Lattices.
Bermudez, Mazza, Rizzi, Goldman, Lewenstein and Martin-Delgado, PRL 105, 190404 (2010).

 Jacopo de Nardis

I received my master in theoretical physics at the University of Pisa in 2011 under the supervision of Prof. Pasquale Calabrese and then I moved to the University of Amsterdam (UvA) for a PhD under the supervision of Prof. Jean-Sébastien Caux. Here I explored widely the realm of one-dimensional interacting integrable models. Despite the fact that the eigenstates and the spectra of these models are known, the study of their equilibrium and non-equilibrium correlation functions is a challenging task. However they constitute the simplest realizations of truly interacting quantum models, providing therefore an optimal outpost where to understand the role of strong interactions in equilibrium and non-equilibrium quantum physics.
My current research interests are out-of-equilibrium dynamics and equilibrium dynamical correlations of integrable systems in the thermodynamic limit, together with the study of non-equilibrium strongly interacting classical statistical models which are mappable to quantum integrable models (Kardar-Parisi-Zhang equation, Simple Exclusion Processes)

Selected Publications

- M. Panfil, J. De Nardis, J-S Caux, Metastable criticality and the super Tonks-Girardeau gas, Phys. Rev. Lett. 110, 125302 (2013)

- J. De Nardis, B. Wouters, M. Brockmann, J-S Caux, Solution for an interaction quench in the Lieb-Liniger Bose gas, Phys. Rev. A 89, 033601 (2014)

- B. Wouters, J. De Nardis, M. Brockmann, D. Fioretto, M. Rigol, J-S Caux, Quenching the Anisotropic Heisenberg Chain : Exact Solution and Generalized Gibbs Ensemble Predictions, Phys. Rev. Lett. 113, 117202 (2014)

- J. De Nardis and J-S Caux, Analytical expression for a post-quench time evolution of the one-body density matrix of one-dimensional hard-core bosons, J. Stat. Mech. (2014) P12012

- J. De Nardis and M. Panfil, Density form factors of the 1D Bose gas for finite entropy states, arXiv:1411.4537 (2014)

Pour nous contacter

Jean-Marc Berroir
Directeur du Labex
directeur@phys.ens.fr

Cécile Margossian
Directrice adjointe du Labex
cecile.margossian@phys.ens.fr

Junior Research Chairs

Chaque année, le Labex recrute troix nouveaux JRC.
Pour en savoir plus sur la procédure de recrutement et le calendrier, cliquez ici.
Voir également ci-dessous l’affiche ‘Creating links that last a lifetime’.

Master de Physique Fondamentale

L’appel à candidatures pour la session 2015/2016 est cloturé :

Pour toute question administrative concernant le master ICFP, vous pouvez nous contacter à l’adresse suivante :
applicationicfp@phys.ens.fr