publications

Quantum quenches with random matrix Hamiltonians and disordered potentials

Fabian Kolley 1 Oriol Bohigas 2 Boris V. Fine 1, 3 Annalen der Physik, 2017 We numerically investigate statistical ensembles for the occupations of eigenstates of an isolated quantum system emerging as a result of quantum quenches. The systems investigated are sparse random matrix Hamiltonians and disordered lattices. In the former case, the quench consists […]

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Quantum Ising model in transverse and longitudinal fields: chaotic wave functions

Y. Y. Atas 1 E. Bogomolny 2 Journal of Physics A: Mathematical and General , IOP Publishing, 2017, 50, pp.385102 The construction of a statistical model for eigenfunctions of the Ising model in transverse and longitudinal fields is discussed in detail for the chaotic case. When the number of spins is large, each wave function

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Probability distribution of the entanglement across a cut at an infinite-randomness fixed point

Trithep Devakul 1 Satya N. Majumdar 2 David A. Huse 1 Physical Review B : Condensed matter and materials physics, American Physical Society, 2017, 95 (10), pp.104204 We calculate the probability distribution of entanglement entropy S across a cut of a finite one dimensional spin chain of length L at an infinite randomness fixed point

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Precursor of the Laughlin state of hard-core bosons on a two-leg ladder

Alexandru Petrescu 1 Marie Piraud 2 Guillaume Roux 3 I. P. Mcculloch 4 Karyn Le Hur 5 Physical Review B : Condensed matter and materials physics, American Physical Society, 2017, 96 (1), pp.014524. 〈10.1103/PhysRevB.96.014524〉 1. EE – Department of Electrical Engineering [Princeton] 2. Department of Physics and Arnold Sommerfeld Center for Theoretical Physics 3. LPTMS

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Pickands’ constant at first order in an expansion around Brownian motion

Mathieu Delorme 1 Alberto Rosso 2 Kay Jörg Wiese 1 Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2017, 50, pp.16LT04 In the theory of extreme values of Gaussian processes, many results are expressed in terms of the Pickands constant $\mathcal{H}_{\alpha}$. This constant depends on the local self-similarity exponent $\alpha$ of the process, i.e.

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Phase diagram of the hexagonal lattice quantum dimer model: Order parameters, ground-state energy, and gaps

Thiago M. SchlittlerRémy Mosseri 1 Thomas Barthel 2, 3 Thiago Schlittler 1 Physical Review B : Condensed matter and materials physics, American Physical Society, 2017, 96 (19), 〈10.1103/PhysRevB.96.195142〉 The phase diagram of the quantum dimer model on the hexagonal (honeycomb) lattice is computed numerically, extending on earlier work by Moessner, Sondhi, and Chandra. The different

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Periodic Airy process and equilibrium dynamics of edge fermions in a trap

Pierre Le Doussal 1 Satya N. Majumdar 2 Gregory Schehr 2 Annals of Physics, 2017, 383, pp.312 – 345 We establish an exact mapping between (i) the equilibrium (imaginary time) dynamics of non-interacting fermions trapped in a harmonic potential at temperature $T=1/\beta$ and (ii) non-intersecting Ornstein-Uhlenbeck (OU) particles constrained to return to their initial positions

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Pedestrian flows through a narrow doorway: Effect of individual behaviours on the global flow and microscopic dynamics

Alexandre Nicolas 1, 2 Sebastián Bouzat 2 Marcelo Kuperman 3, 2 Transportation Research Part B: Methodological, Elsevier, 2017 We study the dynamics of pedestrian evacuations through a narrow doorway by means of controlled experiments. The influence of the pedestrians’ behaviours is investigated by prescribing a selfish attitude to a fraction c_s of the participants, while

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