40 citations · 257 across the 21 of their papers we have counts for
21 papers
Numerical methods for localization
Rudolf A. Römer
Anderson localization provides a challenge to numerical approaches due to the inherent randomness, and hence absence of simple symmetries, in its discrete Hamiltonian representatio…
Maximal Anderson Localization and Suppression of Surface Plasmons in Two-Dimensional Random Au Networks
Johannes Schultz, Karl Hiekel, Pavel Potapov +4
Two-dimensional random metal networks possess unique electrical and optical properties, such as almost total optical transparency and low sheet resistance, which are closely relate…
Disorder effects in the two-dimensional Lieb lattice and its extensions
Xiaoyu Mao, Jie Liu, Jianxin Zhong +1
We study the localization properties of the two-dimensional Lieb lattice and its extensions in the presence of disorder using transfer matrix method and finite-size scaling. We fin…
Spin-selective Aharonov-Casher caging in a topological quantum network
Amrita Mukherjee, Rudolf A. Romer, Arunava Chakrabarti
A periodic network of connected rhombii, mimicking a spintronic device, is shown to exhibit an intriguing spin selective extreme localization, when submerged in a uniform out of pl…
Multifractality of ab initio wave functions in doped semiconductors
Edoardo G. Carnio, Nicholas D. M. Hine, Rudolf A. Römer
In Refs. [1,2] we have shown how a combination of modern linear-scaling DFT, together with a subsequent use of large, effective tight-binding Hamiltonians, allows to compute multif…
Dispersion map induced energy transfer between solitons in optical fibres
A. Savojardo, M. Eberhard, R. A. Römer
We propose an experimental setup to study collision-induced soliton amplification. In an optical fibre with anomalous dispersion (), we replace a small region of the fibre…