256 citations · 771 across the 11 of their papers we have counts for
11 papers
Reducing Ion Heating in Quantum Computing: A Novel 3D-Printed Micro Ion Trap with Skeleton Structure
Chon-Teng Belmiro Chu, Hao-Chung Chen, Ting Hsu +3
Electric-field-induced ion heating is a major obstacle in scalable trapped-ion quantum computing. We present a theoretical study of a novel 3D-printed ion trap with a skeleton elec…
Repeated multi-qubit readout and feedback with a mixed-species trapped-ion register
Vlad Negnevitsky, Matteo Marinelli, Karan Mehta +3
Quantum error correction will be essential for realizing the full potential of large-scale quantum information processing devices. Fundamental to its experimental realization is th…
Quantum harmonic oscillator state control in a squeezed Fock basis
D. Kienzler, H. -Y. Lo, V. Negnevitsky +3
We demonstrate control of a trapped-ion quantum harmonic oscillator in a squeezed Fock state basis, using engineered Hamiltonians analogous to the Jaynes-Cummings and anti-Jaynes-C…
Large Cross-Phase Modulations at the Few-Photon Level
Zi-Yu Liu, Yi-Hsin Chen, Yen-Chun Chen +5
We demonstrate an efficient cross-phase modulation (XPM) based on a closed-loop double-Λ system. The property of the double-Λ medium can be controlled by changing the phases of the…
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…
All-solid-state continuous-wave laser systems for ionization, cooling and quantum state manipulation of beryllium ions
H. -Y. Lo, J. Alonso, D. Kienzler +4
We describe laser systems for photoionization, Doppler cooling and quantum state manipulation of beryllium ions. For photoionization of neutral beryllium, we have developed a conti…
Few-Photon All-Optical π Phase modulation Based on a Double-Λ System
Yen-Chun Chen, Hao-Chung Chen, Hsiang-Yu Lo +4
We propose an efficient all-optical phase modulation based on a double-Λ system and demonstrate a π phase shift of a few-photon pulse induced by another few-photon pulse in cold ru…