101 citations · 297 across the 14 of their papers we have counts for
16 papers
Void-Free Through-Glass Vias for Multilayer Surface-Electrode Ion Traps
Eike Iseke, Jacob Stupp, Friederike Giebel +6
Through-substrate interconnects are a key technology for scaling surface-electrode ion traps (SEITs) toward large electrode counts and complex architectures. Dielectric substrates…
A robust method to reach the motional quantum regime of (anti-)protons in cryogenic multi-Penning traps
Nikita Poljakov, Jan Schaper, Julia-Aileen Coenders +5
Sympathetic laser cooling is a key concept in precision spectroscopy and quantum state control of charged particles. Significant challenges arise in the metrologically relevant cas…
Full Single-Quantum Control of Particles in Penning Traps for Symmetry Tests at the Quantum Limit
J. M. Cornejo, J. -A. Coenders, A. Lissel +9
The BASE collaboration aims to measure antimatter systems with the highest precision in order to perform a rigorous test of CPT symmetry and search for physics beyond the Standard…
Arbitrary quantum circuits on a fully integrated two-qubit computation register for a trapped-ion quantum processor
N. Pulido-Mateo, H. Mendpara, M. Duwe +4
We report on the implementation of arbitrary circuits on a universal two-qubit register that can act as the computational module in a trapped-ion quantum computer based on the quan…
Penning micro-trap for quantum computing
Shreyans Jain, Tobias Sägesser, Pavel Hrmo +8
Trapped ions in radio-frequency traps are among the leading approaches for realizing quantum computers, due to high-fidelity quantum gates and long coherence times. However, the us…
Real-time hybrid quantum-classical computations for trapped-ions with Python control-flow
Tobias Schmale, Bence Temesi, Niko Trittschanke +7
In recent years, the number of hybrid algorithms that combine quantum and classical computations has been continuously increasing. These two approaches to computing can mutually en…
Backend compiler phases for trapped-ion quantum computers
Tobias Schmale, Bence Temesi, Alakesh Baishya +6
A promising architecture for scaling up quantum computers based on trapped ions are so called Quantum Charged-Coupled Devices (QCCD). These consist of multiple ion traps, each desi…
Real-time capable CCD-based individual trapped-ion qubit measurement
S. Halama, T. Dubielzig, N. Orlowski +2
Individual-qubit readout is a key ingredient for quantum simulation and quantum computation. Furthermore, this readout must take place in real-time to enable the application of qua…
Creation of double-well potentials in a surface-electrode trap towards a nanofriction model emulator
U. Tanaka, M. Nakamura, K. Hayasaka +3
We demonstrate a microfabricated surface-electrode ion trap that is applicable as a nanofriction emulator and studies of many-body dynamics of interacting systems. The trap enables…
Ultra-low vibration closed-cycle cryogenic surface-electrode ion trap apparatus
Timko Dubielzig, Sebastian Halama, Henning Hahn +4
We describe the design, commissioning and operation of an ultra-low-vibration closed-cycle cryogenic ion trap apparatus. One hundred lines for low-frequency signals and eight micro…
Robust and resource-efficient microwave near-field entangling Be gate
G. Zarantonello, H. Hahn, J. Morgner +5
Microwave trapped-ion quantum logic gates avoid spontaneous emission as a fundamental source of decoherence. However, microwave two-qubit gates are still slower than laser-induced…
Versatile control of Be ions using a spectrally tailored UV frequency comb
A. -G. Paschke, G. Zarantonello, H. Hahn +6
We demonstrate quantum control of Be ions directly implemented by an optical frequency comb. Based on numerical simulations of the relevant processes in Be for diff…
Integrated Be multi-qubit gate device for the ion-trap quantum computer
Henning Hahn, Giorgio Zarantonello, Marius Schulte +3
We demonstrate the experimental realization of a two-qubit Mølmer-Sørensen gate on a magnetic field-insensitive hyperfine transition in Be ions using microwave-near fields…
Multilayer ion trap technology for scalable quantum computing and quantum simulation
Amado Bautista-Salvador, Giorgio Zarantonello, Henning Hahn +4
We present a novel ion trap fabrication method enabling the realization of multilayer ion traps scalable to an in principle arbitrary number of metal-dielectric levels. We benchmar…
Multilayer ion trap with three-dimensional microwave circuitry for scalable quantum logic applications
Henning Hahn, Giorgio Zarantonello, Amado Bautista-Salvador +5
We present a multilayer surface-electrode ion trap with embedded 3D microwave circuitry for implementing entangling quantum logic gates. We discuss the electromagnetic full-wave si…
Single-ion microwave near-field quantum sensor
M. Wahnschaffe, H. Hahn, G. Zarantonello +5
We develop an intuitive model of 2D microwave near-fields in the unusual regime of centimeter waves localized to tens of microns. Close to an intensity minimum, a simple effective…