637 citations · 851 across the 13 of their papers we have counts for
13 papers
Identical Particle Systems : Hierarchical Spectral Reconstruction
Hovan Lee, Rémi Lefèvre, Grégoire Ithier
We identify a hierarchical symmetry structure underlying the Hilbert space of quantum systems made of identical particles. By studying the linear map between single-body and many-b…
Third sound detectors in accelerated motion
Cameron R. D. Bunney, Vitor S. Barroso, Steffen Biermann +6
An accelerated observer moving through empty space sees particles appearing and disappearing, while an observer with a constant velocity does not register any particles. This pheno…
Many Body Density of States of a system of non interacting spinless fermions
Rémi Lefèvre, Krissia Zawadzki, Grégoire Ithier
The modeling of out-of-equilibrium many-body systems requires to go beyond the low-energy physics and local densities of states. Many-body localization, presence or lack of thermal…
Statistical diagonalization of a random biased Hamiltonian: the case of the eigenvectors
Grégoire Ithier, Saeed Ascroft
We present a non perturbative calculation technique providing the mixed moments of the overlaps between the eigenvectors of two large quantum Hamiltonians: and $\hat{H}…
Typical equilibrium state of an embedded quantum system
Grégoire Ithier, Saeed Ascroft, Florent Benaych-Georges
We consider an arbitrary quantum system coupled non perturbatively to a large arbitrary and fully quantum environment. In [G. Ithier and F. Benaych-Georges, Phys. Rev. A 96, 012108…
Dynamical typicality of embedded quantum systems
Grégoire Ithier, Florent Benaych-Georges
We consider the dynamics of an arbitrary quantum system coupled to a large arbitrary and fully quantum mechanical environment through a random interaction. We establish analyticall…