We report high-fidelity state readout of a trapped ion qubit using a trap-integrated photon
detector. We determine the hyperfine qubit state of a single Be+ 9 ion held in a surface …

Charged microparticles confined in electrodynamic traps evolve into strongly coupled
Coulomb systems (SCCS) which are the subject of current investigation. Recent results with …

We present the design, fabrication and experimental implementation of surface ion traps
with Y-shaped junctions. The traps are designed to minimize the pseudopotential variations …

We demonstrate superconducting nanowire single photon detectors with 76±4% system
detection efficiency at a wavelength of 315 nm and an operating temperature of 3.2 K, with a …

The implementation of fault-tolerant quantum gates on encoded logic qubits is considered. It
is shown that transversal implementation of logic gates based on simple geometric control …

In this paper we present the design, modeling, and experimental testing of surface electrode
ion traps fabricated in a heterostructure configuration comprising a silicon substrate, silicon …

Trapping of microparticles and aerosols is of great interest for physics and chemistry. We
report microparticle trapping in case of multipole linear Paul trap geometries, operating …

Trapping of microparticles, nanoparticles and aerosols is an issue of major interest for
physics and chemistry. We present a setup intended for microparticle trapping in multipole …

Efficient ion-photon coupling is an important component for large-scale ion-trap quantum
computing. We propose that arrays of phase Fresnel lenses (PFLs) are a favorable optical …

While it is important to investigate the negative effects of decoherence on the performance of
quantum information processors, Landauer was one of the first to point out that an equally …