Quantum ergodicity and energy flow in molecules

DM Leitner - Advances in Physics, 2015 - Taylor & Francis
We review a theory for coupled many-nonlinear oscillator systems that describes quantum
ergodicity and energy flow in molecules. The theory exploits the isomorphism between …

Phase transitions in a non-Hermitian Aubry-André-Harper model

S Longhi - Physical Review B, 2021 - APS
The Aubry-André-Harper model provides a paradigmatic example of aperiodic order in a
one-dimensional lattice displaying a delocalization-localization phase transition at a finite …

[PDF][PDF] Quantum dynamics and decompositions of singular continuous spectra

Y Last - Journal of Functional Analysis, 1996 - Citeseer
Quantum Dynamics and Decompositions of Singular Continuous Spectra Page 1 July 5, 1995
Quantum Dynamics and Decompositions of Singular Continuous Spectra Y. Last Division of …

Fractal energy spectrum of a polariton gas in a Fibonacci quasiperiodic potential

D Tanese, E Gurevich, F Baboux, T Jacqmin… - Physical review …, 2014 - APS
We report on the study of a polariton gas confined in a quasiperiodic one-dimensional
cavity, described by a Fibonacci sequence. Imaging the polariton modes both in real and …

[KNYGA][B] Nonlinear dynamics and quantum chaos

S Wimberger - 2014 - Springer
Sandro Wimberger An Introduction Second Edition Page 1 Nonlinear Dynamics and
Quantum Chaos Sandro Wimberger An Introduction Second Edition Graduate Texts in …

Conductivity of quasiperiodic systems: A numerical study

S Roche, D Mayou - Physical Review Letters, 1997 - APS
We develop a new real-space method which allows one to evaluate the Kubo-Greenwood
formula for dc conductivity of independent electrons in a static potential. We apply it to a …

What determines the spreading of a wave packet?

R Ketzmerick, K Kruse, S Kraut, T Geisel - Physical review letters, 1997 - APS
The multifractal dimensions D 2 μ and D 2 ψ of the energy spectrum and eigenfunctions,
respectively, are shown to determine the asymptotic scaling of the width of a spreading wave …

Self acceleration from spectral geometry in dissipative quantum-walk dynamics

P Xue, Q Lin, K Wang, L **ao, S Longhi, W Yi - Nature Communications, 2024 - nature.com
The dynamic behavior of a physical system often originates from its spectral properties. In
open systems, where the effective non-Hermitian description enables a wealth of spectral …

Many-body localization in a quasiperiodic Fibonacci chain

N Macé, N Laflorencie, F Alet - SciPost Physics, 2019 - scipost.org
We study the many-body localization (MBL) properties of a chain of interacting fermions
subject to a quasiperiodic potential such that the non-interacting chain is always delocalized …

Anomalous diffusion properties of wave packets on quasiperiodic chains

F Piéchon - Physical review letters, 1996 - APS
In a perturbative limit, we derive the diffusion properties of initially localized wave packets on
the Fibonacci chain. We establish a new relation between generalized diffusion exponents …