5 papers
Demonstration of transport in an ion trap design for two-dimensional lattices
Michael Pfeifer, Marco Valentini, Matthias Dietl +7
Microfabricated ion trap chips are at the core of some of the most advanced quantum computers. How a large number of ions is arranged and controlled on an ion trap chip depends on…
Demonstration of a Multiplexing Trapped Ion Quantum Processing Unit
F. Anmasser, M. Abu Zahra, K. Schüppert +9
A fault-tolerant quantum computer is expected to require thousands of qubits. Trapped ion architectures provide a modular approach where the quantum register is divided into multip…
Demonstration of two-dimensional connectivity for a scalable error-corrected ion-trap quantum processor architecture
Marco Valentini, Martin W. van Mourik, Friederike Butt +12
A major hurdle for building a large-scale quantum computer is increasing the number of qubits while maintaining connectivity between them. In trapped-ion devices, this connectivity…
Test and characterization of multilayer ion traps on fused silica
Matthias Dietl, Marco Valentini, Fabian Anmasser +7
Ion traps are a promising architecture to host a future quantum computer. Several challenges, such as signal-routing, power dissipation, and fabrication quality need to be overcome…
Conclusions Not Yet Drawn from the Unsolved 4/3-Problem -- How to Get a Stable Classical Electron
Manfried Faber
It has been known for over 100 years that there is a discrepancy between Maxwell's electrodynamics and the idea of a classical electron as the ``atom'' of electricity. This incompa…