publications

Influence of liquid structure on the thermodynamics of freezing

Pierre Ronceray 1, 2, Peter Harrowell 3 Physical Review E 87 (2013) 052313 The ordering transitions of a 2D lattice liquid characterized by a single favoured local structure (FLS) are studied using Monte Carlo simulations. All eight distinct geometries for the FLS are considered and we find a variety of ordering transitions – first order, continuous and multi-step transitions. Using […]

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Bragg spectroscopy of clean and disordered lattice bosons in one dimension: a spectral fingerprint of the Bose glass

Guillaume Roux1, Anna Minguzzi2, Tommaso Roscilde3 New J. Phys. 15, 055003 (2013) We study the dynamic structure factor of a one-dimensional Bose gas confined in an optical lattice and modeled by the Bose-Hubbard Hamiltonian, using a variety of numerical and analytical approaches. The dynamic structure factor, experimentally measurable by Bragg spectroscopy, is studied in three

Bragg spectroscopy of clean and disordered lattice bosons in one dimension: a spectral fingerprint of the Bose glass Lire la suite »

Quantum fluctuations around black hole horizons in Bose-Einstein condensates – Archive ouverte HAL

P.-É. Larré 1 A. RecatiI. CarusottoN. Pavloff P.-É. Larré, A. Recati, I. Carusotto, N. Pavloff. Quantum fluctuations around black hole horizons in Bose-Einstein condensates. Physical Review A, American Physical Society, 2012, 85, pp.013621. ⟨10.1103/PhysRevA.85.013621⟩. ⟨hal-03538631⟩ 1. LPTMS – Laboratoire de Physique Théorique et Modèles Statistiques

Quantum fluctuations around black hole horizons in Bose-Einstein condensates – Archive ouverte HAL Lire la suite »

Wave pattern induced by a localized obstacle in the flow of a one-dimensional polariton condensate – Archive ouverte HAL

P.-É. Larré 1 N. PavloffA. M. Kamchatnov P.-É. Larré, N. Pavloff, A. M. Kamchatnov. Wave pattern induced by a localized obstacle in the flow of a one-dimensional polariton condensate. Physical Review B, American Physical Society, 2012, 86, pp.165304. ⟨10.1103/PhysRevB.86.165304⟩. ⟨hal-03538641⟩ Motivated by recent experiments on generation of wave patterns by a polariton condensate incident on

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Charge-density waves studied at the surface and at the atomic scale in NbSe3

Pierre Monceau 1 C. Brun 2 Zhao-Zhong Wang 2 S. Brazovskii 3 Physica B: Condensed Matter, Elsevier, 2012, 407 (11), pp.1845 We have studied by scanning tunneling microscopy (STM) the two charge-density wave (CDW) transitions in NbSe3 on in situ cleaved (b,c) plane. We could identify the three types of chains existing inside a single

Charge-density waves studied at the surface and at the atomic scale in NbSe3 Lire la suite »

Membrane shape at the edge of the dynamin helix sets location and duration of the fission reaction.

Sandrine Morlot 1, 2 Valentina Galli 1 Marius Klein 2 Nicolas Chiaruttini 3 John Manzi 2 Frédéric Humbert 1 Luis DinisMartin Lenz 4 Giovanni Cappello 2 Aurélien Roux 1 Cell, Elsevier (Cell Press), 2012, 151 (3), pp.619-29 The GTPase dynamin polymerizes into a helical coat that constricts membrane necks of endocytic pits to promote their

Membrane shape at the edge of the dynamin helix sets location and duration of the fission reaction. Lire la suite »

Scanning-Tunneling Microscope Imaging of Single-Electron Solitons in a Material with Incommensurate Charge-Density Waves

Serguei Brazovskii 1 Christophe Brun 2 Zhao-Zhong Wang 2 Pierre Monceau 3 Physical Review Letters, American Physical Society, 2012, 108 (9), pp.096801. <10.1103/PhysRevLett.108.096801> We report on scanning-tunneling microscopy experiments in a charge-density wave (CDW) system allowing visually capturing and studying in detail the individual solitons corresponding to the self-trapping of just one electron. This « Amplitude

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Finite-temperature and finite-time scaling of the directed polymer free-energy with respect to its geometrical fluctuations

Elisabeth Agoritsas 1, * Sebastian Bustingorry 2 Vivien Lecomte 3 Gregory Schehr 4 Thierry Giamarchi 1 Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2012, 86 (3), pp.031144. <10.1103/PhysRevE.86.031144> We study the fluctuations of the directed polymer in 1+1 dimensions in a Gaussian random environment with a finite correlation length

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Archive ouverte HAL – From Weak- to Strong-Coupling Mesoscopic Fermi Liquids

Dong E. Liu 1 Sébastien Burdin 2 Harold U. Baranger 1 Denis Ullmo 3 EPL – Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2012, 97 (1), pp.17006. 〈10.1209/0295-5075/97/17006〉 We study mesoscopic fluctuations in a system in which there is a continuous connection between two distinct Fermi liquids, asking whether the mesoscopic variation

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Archive ouverte HAL – Mesoscopic Anderson Box: Connecting Weak to Strong Coupling

Dong E. Liu 1, * Sébastien Burdin 2 Harold U. Baranger 1 Denis Ullmo 3 Physical Review B : Condensed matter and materials physics, American Physical Society, 2012, 85 (15), pp.155455 (1-17). 〈10.1103/PhysRevB.85.155455〉 Both the weakly coupled and strong coupling Anderson impurity problems are characterized by a Fermi-liquid theory with weakly interacting quasiparticles. In an

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