The spin degree of freedom of an electron or a nucleus is one of the most basic properties of
nature and functions as an excellent qubit, as it provides a natural two-level system that is …

Once the periodic properties of elements were unveiled, chemical behaviour could be
understood in terms of the valence of atoms. Ideally, this rationale would extend to quantum …

In many physical approaches to quantum computation, error-correction schemes assume
the ability to form two-dimensional qubit arrays with nearest-neighbor couplings and parallel …

Scalable quantum processors require tunable two-qubit gates that are fast, coherent and
long-range. The Heisenberg exchange interaction offers fast and coherent couplings for spin …

We investigate the spin of a multielectron GaAs quantum dot in a sequence of nine charge
occupancies, by exchange coupling the multielectron dot to a neighboring two-electron …

We set up and parametrize a Hubbard model for interacting quantum dots in bilayer
graphene and study double dots as the smallest multidot system. We demonstrate the …

Multielectron semiconductor quantum dots (QDs) provide a novel platform to study the
Coulomb interaction-driven, spatially localized electron states of Wigner molecules (WMs) …

The spectral properties of electrons confined in a wirelike quasi-one-dimensional (1D)
elongated quantum dot coupler between silicon qubits are investigated with a valley …

Spin chains with site dependent exchange coefficients can achieve near perfect quantum
state transfer for Hamiltonians with nearest neighbors XXZ type interactions without external …

Scaling up qubits is a necessary step to realize useful systems of quantum computation.
Here, we demonstrate coherent manipulations of four individual electron spins using a micro …