35 citations · 121 across the 10 of their papers we have counts for
10 papers
Transition from Diffusive to Superdiffusive Transport in Carbon Nanotube Networks via Nematic Order Control
Michael Wais, Filchito Renee G. Bagsican, Natsumi Komatsu +8
The one-dimensional confinement of quasiparticles in individual carbon nanotubes (CNTs) leads to extremely anisotropic electronic and optical properties. In a macroscopic ensemble…
Origin of the Background Absorption in Carbon Nanotubes: Phonon-Assisted Excitonic Continuum
Stefano Dal Forno, Natsumi Komatsu, Michael Wais +8
Excitonic effects in 1D semiconductors can be qualitatively different from those in higher dimensions. In particular, the Sommerfeld factor, the ratio of the above-band-edge excito…
Numerical Solver for the out-of-equilibrium time dependent Boltzmann Collision operator: Application to 2D materials
Indrajit Wadgaonkar, Michael Wais, Marco Battiato
The Time Dependent Boltzmann equation (TDBE) is a viable option to study strongly out-of-equilibrium thermalization dynamics which are becoming increasingly critical for many novel…
Comparing scattering rates from Boltzmann and dynamical mean-field theory
M. Wais, J. Kaufmann, M. Battiato +1
We compute scattering rates for electrons in the two-dimensional Hubbard model for a one-orbital metal and a two-orbital band insulator by means of the Boltzmann scattering equatio…
Terahertz Excitonics in Carbon Nanotubes: Exciton Autoionization and Multiplication
Filchito Renee G. Bagsican, Michael Wais, Natsumi Komatsu +10
Excitons play major roles in optical processes in modern semiconductors, such as single-wall carbon nanotubes (SWCNTs), transition metal dichalcogenides, and 2D perovskite quantum…
Numerical solver for the time-dependent far-from-equilibrium Boltzmann equation
Michael Wais, Karsten Held, Marco Battiato
The study of strongly out-of-equilibrium states and their time evolution towards thermalization is critical to the understanding of an ever widening range of physical processes. We…
Quantum Boltzmann equation for strongly correlated systems: comparison to dynamical mean field theory
Michael Wais, Martin Eckstein, Roland Fischer +3
We investigate the potential of a quantum Boltzmann equation without momentum conservation for description of strongly correlated electron systems out of equilibrium. In a spirit s…
Importance of Schottky barriers for wide-bandgap thermoelectric devices
Michael Wais, Marco Battiato, Karsten Held
The development of thermoelectric devices faces not only the challenge of optimizing the Seebeck coefficient, the electrical and thermal conductivity of the active material, but al…
Observation of molecular dipole excitations by attosecond self-streaking
Georg Wachter, Stefan Nagele, Shunsuke A. Sato +6
We propose a protocol to probe the ultrafast evolution and dephasing of coherent electronic excitation in molecules in the time domain by the intrinsic streaking field generated by…
Time-resolved photoemission using attosecond streaking
Stefan Nagele, Renate Pazourek, Michael Wais +2
We theoretically study time-resolved photoemission in atoms as probed by attosecond streaking. We review recent advances in the study of the photoelectric effect in the time domain…