263 citations · 1.5k across the 19 of their papers we have counts for
19 papers
Benchmarking Hamiltonian Noise in the D-Wave Quantum Annealer
Tristan Zaborniak, Rogério de Sousa
Various sources of noise limit the performance of quantum computers by altering qubit states in an uncontrolled manner throughout computations and reducing their coherence time. In…
Normal Modes of a Spin Cycloid or Helix
Randy S. Fishman, Toomas Room, Rogerio de Sousa
Although spin cycloids and helices are quite common, remarkably little is known about the normal modes of a spin cycloid or helix with finite length on a discrete lattice. Based on…
Sinusoidal electromagnon in RMnO3: Indication of anomalous magnetoelectric coupling
Markku P. V. Stenberg, Rogério de Sousa
The optical spectra in the family of multiferroic manganites RMnO3 is a great puzzle. Current models can not explain the fact that two strong electromagnons are present in the non-…
Model for twin electromagnons and magnetically induced oscillatory polarization in multiferroic RMnO
Markku P. V. Stenberg, Rogerio de Sousa
We propose a model for the pair of electromagnon excitations observed in the class of multiferroic materials {\it R}MnO ({\it R} is a rare-earth ion). The model is based on a h…
Spin-dependent scattering in a silicon transistor
Rogerio de Sousa, Cheuk Chi Lo, Jeffrey Bokor
The scattering of conduction electrons off neutral donors depends sensitively on the relative orientation of their spin states. We present a theory of spin-dependent scattering in…
Multiferroic materials for spin-based logic devices
Rogerio de Sousa, Joel E. Moore
Logical devices based on spin waves offer the potential to avoid dissipation mechanisms that limit devices based on either the charge or spin of mobile electrons. Multiferroic magn…