101 citations · 394 across the 14 of their papers we have counts for
15 papers
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…
Towards Quantum Logic Inspired Cooling and Detection for Single (Anti-)Protons
T. Meiners, M. Niemann, A. -G. Paschke +7
We discuss laser-based and quantum logic inspired cooling and detection methods amenable to single (anti-)protons. These would be applicable e.g. in a g-factor based test of CPT in…
Towards Sympathetic Laser Cooling and Detection of Single (Anti-)Proton
T. Meiners, M. Niemann, A. -G. Paschke +8
Current experimental efforts to test the fundamental CPT symmetry with single (anti-)protons are progressing at a rapid pace but are hurt by the nonzero temperature of particles an…
Cryogenic Penning-Trap Apparatus for Precision Experiments with Sympathetically Cooled (anti)protons
M. Niemann, T. Meiners, J. Mielke +17
Current precision experiments with single (anti)protons to test CPT symmetry progress at a rapid pace, but are complicated by the need to cool particles to sub-thermal energies. We…
Quantum logic inspired techniques for spacetime-symmetry tests with (anti-)protons
Juan M. Cornejo, Ralf Lehnert, Malte Niemann +9
Cosmological observations as well as theoretical approaches to physics beyond the Standard Model provide strong motivations for experimental tests of fundamental symmetries, such a…
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…
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…
A cryogenic radio-frequency ion trap for quantum logic spectroscopy of highly charged ions
Tobias Leopold, Steven A. King, Peter Micke +5
A cryogenic radio-frequency ion trap system designed for quantum logic spectroscopy of highly charged ions is presented. It includes a segmented linear Paul trap, an in-vacuum imag…
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…
Designing spin-spin interactions with one and two dimensional ion crystals in planar micro traps
J. Welzel, A. Bautista-Salvador, C. Abarbanel +4
We discuss the experimental feasibility of quantum simulation with trapped ion crystals, using magnetic field gradients. We describe a micro structured planar ion trap, which conta…
Fabrication of a planar micro Penning trap and numerical investigations of versatile ion positioning protocols
M. Hellwig, A. Bautista-Salvador, K. Singer +2
We describe a versatile planar Penning trap structure, which allows to dynamically modify the trapping conguration almost arbitrarily. The trap consists of 37 hexagonal electrodes,…