Quantum kicked rotor and its variants: Chaos, localization and beyond
Kicked rotor is a paradigmatic model for classical and quantum chaos in time-dependent
Hamiltonian systems. More than fifty years since the introduction of this model, there is an …
Hamiltonian systems. More than fifty years since the introduction of this model, there is an …
Anomalous fractal scaling in two-dimensional electric networks
Much of the qualitative nature of physical systems can be predicted from the way it scales
with system size. Contrary to the continuum expectation, we observe a profound deviation …
with system size. Contrary to the continuum expectation, we observe a profound deviation …
Many-body multifractality throughout bosonic superfluid and Mott insulator phases
We demonstrate many-body multifractality of the Bose-Hubbard Hamiltonian's ground state
in Fock space, for arbitrary values of the interparticle interaction. Generalized fractal …
in Fock space, for arbitrary values of the interparticle interaction. Generalized fractal …
Critical dynamics of long-range quantum disordered systems
Long-range hop**s in quantum disordered systems are known to yield quantum
multifractality, the features of which can go beyond the characteristic properties associated …
multifractality, the features of which can go beyond the characteristic properties associated …
Quantum quenches in disordered systems: Approach to thermal equilibrium without a typical relaxation time
We study spectral properties and the dynamics after a quench of one-dimensional spinless
fermions with short-range interactions and long-range random hop**. We show that a …
fermions with short-range interactions and long-range random hop**. We show that a …
Describing the critical behavior of the Anderson transition in infinite dimension by random-matrix ensembles: Logarithmic multifractality and critical localization
Due to their analytical tractability, random matrix ensembles serve as robust platforms for
exploring exotic phenomena in systems that are computationally demanding. Building on a …
exploring exotic phenomena in systems that are computationally demanding. Building on a …
Interactions destroy dynamical localization with strong and weak chaos
Bose-Einstein condensates loaded into kicked optical lattices can be treated as quantum
kicked-rotor systems. Noninteracting rotors show dynamical localization in momentum …
kicked-rotor systems. Noninteracting rotors show dynamical localization in momentum …
Quantum logarithmic multifractality
Through a combination of rigorous analytical derivations and extensive numerical
simulations, this work reports an exotic multifractal behavior, dubbed “logarithmic …
simulations, this work reports an exotic multifractal behavior, dubbed “logarithmic …
Coherent forward scattering as a robust probe of multifractality in critical disordered media
We study coherent forward scattering (CFS) in critical disordered systems, whose
eigenstates are multifractals. We give general and simple arguments that make it possible to …
eigenstates are multifractals. We give general and simple arguments that make it possible to …
Scaling perspective on intramolecular vibrational energy flow: analogies, insights, and challenges
S Keshavamurthy - Adv. Chem. Phys, 2013 - Wiley Online Library
This is a study, certainly not the first one, about the phenomenon of intramolecular
vibrational energy redistribution (IVR)—its mechanism and impact on the reaction rate …
vibrational energy redistribution (IVR)—its mechanism and impact on the reaction rate …