Publications related to Snow avalanches striking water basins: behaviour of the avalanche's centre of mass and front.

Emergent non-Hermitian localization phenomena in the synthetic space of zero-dimensional bosonic systems

Phase transitions in non-Hermitian systems are at the focus of cutting edge theoretical and experimental research. On the one hand, parity-time- (PT-) and anti-PT-symmetric physics have gained ever-growing interest, due to the existence of non-Hermitian sp ...

AMER PHYSICAL SOC2023

Long-range electrostatic contribution to electron-phonon couplings and mobilities of two-dimensional and bulk materials

Nicola Marzari, Marco Gibertini, Samuel Poncé, Massimiliano Stengel

Charge transport plays a crucial role in manifold potential applications of two-dimensional materials, in-cluding field-effect transistors, solar cells, and transparent conductors. At most operating temperatures, charge transport is hindered by scattering ...

AMER PHYSICAL SOC2023

Long Time Behavior of an Age- and Leaky Memory-Structured Neuronal Population Equation

Valentin Marc Schmutz

We study the asymptotic stability of a two-dimensional mean-field equation, which takes the form of a nonlocal transport equation and generalizes the time-elapsed neuron network model by the inclusion of a leaky memory variable. This additional variable ca ...

2022

Physics-based estimates of drag coefficients for the impact pressure calculation of dense snow avalanches.

Christophe Ancey, Johan Alexandre Philippe Gaume, Michael Lukas Kyburz

In avalanche engineering and hazard mapping, computing impact pressures exerted by avalanches on rigid structures has long been a difficult task that requires combining empirical equations, rules of thumb, engineering judgment and experience. Until the 199 ...

2022

Water vapor transport in snowpacks

Mahdi Jafari

This thesis is an in-depth treatment of water vapor transport in snowpacks and its impacts on snow structure. The aim is to better understand this transport process and to lay the basis for a model representation in physics-based multi-layer snow models. O ...

EPFL2022

Three-dimensional and real-scale modeling of flow regimes in dense snow avalanches

Johan Alexandre Philippe Gaume, Betty Sovilla, Xingyue Li

Snow avalanches cause fatalities and economic loss worldwide and are one of the most dangerous gravitational hazards in mountainous regions. Various flow behaviors have been reported in snow avalanches, making them challenging to be thoroughly understood a ...

2021

Effects of spanwise confinement on stratified shear instabilities

François Gallaire, Yves-Marie François Ducimetière

We consider the influence of transverse confinement on the instability properties of velocity and density distributions reminiscent of those pertaining to exchange flows in stratified inclined ducts, such as the recent experiment of Lefauve et al. [J. Flui ...

2021

Time-independent feedbacks for the null controllability of homogeneous quasilinear hyperbolic systems in one dimensional space

Hoài-Minh Nguyên

We consider the null controllability of homogeneous quasilinear hyperbolic systems with one side controls and with nonlinear boundary condition at the other side. We present time-independent feedbacks for the null-controllability for

C^1

-solutions at any ...

2020

Staggered flux state for rectangular-lattice spin-1/2 Heisenberg antiferromagnets

Henrik Moodysson Rønnow, Dmitri Ivanov, Bastien Dalla Piazza, Noore Elahi Shaik

We investigate the spin-1/2 Heisenberg model on a rectangular lattice, using the Gutzwiller projected variational wave function known as the staggered flux state. Using Monte Carlo techniques, the variational parameters and instantaneous spin-spin correlat ...

AMER PHYSICAL SOC2020

Influence of the inlet velocity profile on the flow stability in a symmetric channel expansion

François Gallaire, Lorenzo Siconolfi, Robin Debuysschère

In a channel flow with a sudden expansion, whether for three-dimensional (3-D) pipe and channel flows, or for two-dimensional (2-D) channel flow, it is known that increasing the Reynolds number beyond a critical value induces a symmetry breaking Pitchfork ...

CAMBRIDGE UNIV PRESS2020

Snow avalanches striking water basins: behaviour of the avalanche's centre of mass and front.

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Emergent non-Hermitian localization phenomena in the synthetic space of zero-dimensional bosonic systems

Long-range electrostatic contribution to electron-phonon couplings and mobilities of two-dimensional and bulk materials

Long Time Behavior of an Age- and Leaky Memory-Structured Neuronal Population Equation

Physics-based estimates of drag coefficients for the impact pressure calculation of dense snow avalanches.

Water vapor transport in snowpacks

Three-dimensional and real-scale modeling of flow regimes in dense snow avalanches

Effects of spanwise confinement on stratified shear instabilities

Time-independent feedbacks for the null controllability of homogeneous quasilinear hyperbolic systems in one dimensional space

Staggered flux state for rectangular-lattice spin-1/2 Heisenberg antiferromagnets

Influence of the inlet velocity profile on the flow stability in a symmetric channel expansion

Emergent non-Hermitian localization phenomena in the synthetic space of zero-dimensional bosonic systems

Staggered flux state for rectangular-lattice spin-1/2 Heisenberg antiferromagnets

Three-dimensional and real-scale modeling of flow regimes in dense snow avalanches

Long-range electrostatic contribution to electron-phonon couplings and mobilities of two-dimensional and bulk materials

Long Time Behavior of an Age- and Leaky Memory-Structured Neuronal Population Equation

Water vapor transport in snowpacks

Physics-based estimates of drag coefficients for the impact pressure calculation of dense snow avalanches.

Influence of the inlet velocity profile on the flow stability in a symmetric channel expansion

Effects of spanwise confinement on stratified shear instabilities

Time-independent feedbacks for the null controllability of homogeneous quasilinear hyperbolic systems in one dimensional space