326 citations · 3.6k across the 73 of their papers we have counts for
6 papers · 1 filter
Electronic and transport properties in geometrically disordered graphene antidot lattices
Zheyong Fan, Andreas Uppstu, Ari Harju
A graphene antidot lattice, created by a regular perforation of a graphene sheet, can exhibit a considerable band gap required by many electronics devices. However, deviations from…
Charge-noise tolerant exchange gates of singlet-triplet qubits in asymmetric double quantum dots
Tuukka Hiltunen, Hendrik Bluhm, Sebastian Mehl +1
In the semi-conductor double quantum dot singlet-triplet qubit architecture, the decoherence caused by the qubit's charge environment poses a serious obstacle in the way towards la…
Superfluidity and Density Order in a Bilayer Extended Hubbard Model
Tuomas I. Vanhala, Jildou E. Baarsma, Miikka O. J. Heikkinen +3
We use cluster dynamical mean field theory to study the phase diagram of the square lattice bilayer Hubbard model with an interlayer interaction. The layers are populated by two-co…
Orbital-Free Density Functional Theory Implementation with the Projector Augmented-Wave Method
J. Lehtomäki, I. Makkonen, M. A. Caro +2
We present a computational scheme for orbital-free density functional theory (OFDFT) that simultaneously provides access to all-electron values and preserves the OFDFT linear scali…
Impurities and Landau level mixing in a fractional quantum Hall state in a flatband lattice model
Topi Siro, Mikko Ervasti, Ari Harju
We study the toplogical checkerboard lattice model around the fractional quantum Hall phase using numerical exact diagonalization without Landau level projections.…
Capacitative coupling of singlet-triplet qubits in different inter-qubit geometries
Tuukka Hiltunen, Ari Harju
In the singlet-triplet qubit architecture, the two-qubit interactions required in universal quantum computing can be implemented by capacitative coupling, by exploiting the charge…