293 citations · 754 across the 18 of their papers we have counts for
18 papers
Ablation Removal of Transport-Blocking Defects in Surface-Electrode Ion Traps
Toby Maddock, Parsa Rahimi, Matthew Aylett +3
We demonstrate in situ removal of a transport-blocking defect on a surface-electrode ion trap device using a Q-switched Nd:YAG 532 nm pulsed ablation laser. This approach eliminate…
In-vacuum surface flashover of SiN, AlN, and etched SiO2 thin films at micrometre scales
Vijay Kumar, Martin Siegele-Brown, Matthew Aylett +2
We investigate the surface flashover voltage threshold for SiO, SiN, and AlN thin films over micrometre scale lengths. Furthermore, we test the effects of different etching che…
Fast-response low power atomic oven for integration into an ion microchip
Vijay Kumar, Martin Siegele-Brown, Parsa Rahimi +3
We present a novel microfabricated neutral atom source for quantum technologies that can be easily integrated onto microchip devices using well-established MEMS fabrication techniq…
An iterative transversal CNOT decoder
Kwok Ho Wan, Mark Webber, Austin G. Fowler +1
Modern platforms for potential qubit candidates, such as trapped ions or neutral atoms, allow long range connectivity between distant physical qubits through shuttling. This opens…
Amplitude-noise-resilient entangling gates for trapped ions
Nguyen H. Le, Modesto Orozco-Ruiz, Sahra A. Kulmiya +4
Noise resilience of quantum information processing is a crucial precondition to reach the fault-tolerance threshold. While resilience to many types of noise can be achieved through…
Ultrasensitive single-ion electrometry in a magnetic field gradient
F. Bonus, C. Knapp, C. H. Valahu +3
Hyperfine energy levels in trapped ions offer long-lived spin states. In addition, the motion of these charged particles couples strongly to external electric field perturbations.…
Robust entanglement by continuous dynamical decoupling of the J-coupling interaction
C. H. Valahu, A. M. Lawrence, S. Weidt +1
We propose a laser-free entangling gate which uses the intrinsic J-coupling of ions in a static magnetic gradient. Dephasing of the interaction is suppressed by me…
A scalable helium gas cooling system for trapped-ion applications
Foni R. Lebrun-Gallagher, Nicholas Johnson, Mariam Akhtar +5
Microfabricated ion-trap devices offer a promising pathway towards scalable quantum computing. Research efforts have begun to focus on the engineering challenges associated with de…
Generation of high-fidelity quantum control methods for multi-level systems
J. Randall, A. M. Lawrence, S. C. Webster +3
In recent decades there has been a rapid development of methods to experimentally control individual quantum systems. A broad range of quantum control methods has been developed fo…
Trapped-ion quantum logic with global radiation fields
S. Weidt, J. Randall, S. C. Webster +7
Trapped ions are a promising tool for building a large-scale quantum computer. However, the number of required radiation fields for the realisation of quantum gates in any proposed…
Experimental system design for the integration of trapped-ion and superconducting qubit systems
D. De Motte, A. R. Grounds, M. Rehák +8
We present a design for the experimental integration of ion trapping and superconducting qubit systems as a step towards the realization of a quantum hybrid system. The scheme addr…
Blueprint for a microwave trapped-ion quantum computer
B. Lekitsch, S. Weidt, A. G. Fowler +4
The availability of a universal quantum computer will have fundamental impact on a vast number of research fields and society as a whole. An increasingly large scientific and indus…
Ground-state cooling of a trapped ion using long-wavelength radiation
S. Weidt, J. Randall, S. C. Webster +5
We demonstrate ground-state cooling of a trapped ion using radio-frequency (RF) radiation. This is a powerful tool for the implementation of quantum operations, where RF or microwa…
Efficient preparation and detection of microwave dressed-state qubits and qutrits with trapped ions
J. Randall, S. Weidt, E. D. Standing +6
We demonstrate a method for preparing and detecting all eigenstates of a three-level microwave dressed system with a single trapped ion. The method significantly reduces the experi…
Two-dimensional ion trap lattice on a microchip
R. C. Sterling, H. Rattanasonti, S. Weidt +5
Microfabricated ion traps are a major advancement towards scalable quantum computing with trapped ions. The development of more versatile ion-trap designs, in which tailored arrays…
Increased surface flashover voltage in microfabricated devices
R. C. Sterling, M. D. Hughes, C. J. Mellor +1
With the demand for improved performance in microfabricated devices, the necessity to apply greater electric fields and voltages becomes evident. When operating in vacuum, the volt…
On the application of radio frequency voltages to ion traps via helical resonators
J. D. Siverns, L. R. Simkins, S. Weidt +1
Ions confined using a Paul trap require a stable, high voltage and low noise radio frequency (RF) potential. We present a guide for the design and construction of a helical coil re…
Optimum electrode configurations for fast ion separation in microfabricated surface ion traps
Altaf H. Nizamani, Winfried K. Hensinger
For many quantum information implementations with trapped ions, effective shuttling operations are important. Here we discuss the efficient separation and recombination of ions in…