publications

Statistics of fermions in a $d$-dimensional box near a hard wall

Bertrand Lacroix-A-Chez-Toine 1 Pierre Le Doussal 2 Satya N. Majumdar 1 Gregory Schehr 1 EPL – Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2017 We study $N$ noninteracting fermions in a domain bounded by a hard wall potential in $d \geq 1$ dimensions. We show that for large $N$, the correlations at […]

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Spectroscopy and Directed Transport of Topological Solitons in Crystals of Trapped Ions

J. Brox 1 P. Kiefer 1 M. Bujak 1 H. Landa 2 T. Schaetz 1 Physical Review Letters, American Physical Society, 2017, 119 (15), 〈10.1103/PhysRevLett.119.153602〉 We study experimentally and theoretically discrete solitons in crystalline structures consisting of several tens of laser-cooled ions confined in a radiofrequency trap. Resonantly exciting localized, spectrally gapped vibrational modes of

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Spatio-temporal patterns in ultra-slow domain wall creep dynamics

Ezequiel E. Ferrero 1 Laura Foini 2 Thierry Giamarchi 2 Alejandro B. Kolton 3 Alberto Rosso 4 Physical Review Letters, American Physical Society, 2017, 118 (14), pp.147208 In presence of impurities, ferromagnetic and ferroelectric domain walls slide only above a finite external field. Close to this depinning threshold, they proceed by large and abrupt jumps,

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Solution of the Riemann problem for polarization waves in a two-component Bose-Einstein condensate

S. K. Ivanov 1, 2 A. M. Kamchatnov 3, 1 T. Congy 4 N. Pavloff 4 Physical Review E , American Physical Society (APS), 2017, 96 (6), 〈10.1103/PhysRevE.96.062202〉 We provide a classification of the possible flow of two-component Bose-Einstein condensates evolving from initially discontinuous profiles. We consider the situation where the dynamics can be reduced

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Shape of the magnetoroton at $\nu=1/3$ and $\nu=7/3$ in real samples

Thierry Jolicoeur 1 Physical Review B : Condensed matter and materials physics, American Physical Society, 2017, 95, pp.075201 We revisit the theory of the collective neutral excitation mode in the fractional quantum Hall effect at Landau level filling fractions $\nu=1/3$ and $\nu=7/3$. We include the effect of finite thickness of the two-dimensional electron gas and

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Second level semi-degenerate fields in W3 Toda theory: matrix element and differential equation

Vladimir Belavin 1, 2 Xiangyu Cao 3 Benoit Estienne 4 Raoul Santachiara 3 Journal of High Energy Physics, Springer, 2017, 3, pp.008 In a recent study we considered W3 Toda 4-point functions that involve matrix elements of a primary field with the highest-weight in the adjoint representation of sl3. We generalize this result by considering

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Quasi-universality in mixed salt-free counterions systems

M. Trulsson 1 Ladislav Šamaj 2 E. Trizac 1 EPL – Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2017, 118 (1), pp.16001 The screening of plate-plate interactions by counterions is an age-old problem. We revisit this classic question when counterions exhibit a distribution of charges. While it is expected that the long-distance

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