256 citations · 843 across the 19 of their papers we have counts for
12 papers · 1 filter
Non-linear cooling and control of a mechanical quantum harmonic oscillator
Matteo Simoni, Ivan Rojkov, Matteo Mazzanti +7
Non-linearities are a key feature allowing non-classical control of quantum harmonic oscillators. However, when non-linearities are strong, designing protocols for control is often…
A 3-dimensional scanning trapped-ion probe
Tobias Sägesser, Shreyans Jain, Pavel Hrmo +6
Single-atom quantum sensors offer high spatial resolution and high sensitivity to electric and magnetic fields. Among them, trapped ions offer exceptional performance in sensing el…
Multi-zone trapped-ion qubit control in an integrated photonics QCCD device
Carmelo Mordini, Alfredo Ricci Vasquez, Yuto Motohashi +6
Multiplexed operations and extended coherent control over multiple trapping sites are fundamental requirements for a trapped-ion processor in a large scale architecture. Here we de…
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…
Generation of a maximally entangled state using collective optical pumping
M. Malinowski, C. Zhang, V. Negnevitsky +7
We propose and implement a novel scheme for dissipatively pumping two qubits into a singlet Bell state. The method relies on a process of collective optical pumping to an excited l…
Quantum gate teleportation between separated qubits in a trapped-ion processor
Yong Wan, Daniel Kienzler, Stephen D. Erickson +9
Large-scale quantum computers will require quantum gate operations between widely separated qubits. A method for implementing such operations, known as quantum gate teleportation (…
Chained Bell Inequality Experiment with High-Efficiency Measurements
T. R. Tan, Y. Wan, S. Erickson +6
We report correlation measurements on two Be ions that violate a chained Bell inequality obeyed by any local-realistic theory. The correlations can be modeled as derived fr…
Observation of quantum interference between separated mechanical oscillator wavepackets
D. Kienzler, C. Flühmann, V. Negnevitsky +4
The ability of matter to be superposed at two different locations while being intrinsically connected by a quantum phase is among the most counterintuitive predictions of quantum p…
Time-dependent Hamiltonian estimation for Doppler velocimetry of trapped ions
L. E. de Clercq, R. Oswald, C. Flühmann +7
The time evolution of a closed quantum system is connected to its Hamiltonian through Schroedinger's equation. The ability to estimate the Hamiltonian is critical to our understand…
Parallel transport quantum logic gates with trapped ions
Ludwig E. de Clercq, Hsiang-Yu Lo, Matteo Marinelli +6
We demonstrate single-qubit operations by transporting a beryllium ion with a controlled velocity through a stationary laser beam. We use these to perform coherent sequences of qua…
Spin-motion entanglement and state diagnosis with squeezed oscillator wavepackets
Hsiang-Yu Lo, Daniel Kienzler, Ludwig de Clercq +4
Mesoscopic superpositions of distinguishable coherent states provide an analog to the Schrödinger's cat thought experiment. For mechanical oscillators these have primarily been rea…
Quantum harmonic oscillator state synthesis by reservoir engineering
D. Kienzler, H. -Y. Lo, B. Keitch +6
The robust generation of quantum states in the presence of decoherence is a primary challenge for explorations of quantum mechanics at larger scales. Using the mechanical motion of…