12 citations · 23 across the 10 of their papers we have counts for
8 papers · 1 filter
Observation of a topological defect state in the quantum Rabi model
Kyungmin Lee, Jiyong Kang, Sunkyu Yu +3
Synthetic lattices built from hybrid qubit-oscillator systems provide a platform for exploring topology, with multiple physical degrees of freedom enabling control over lattice geo…
Characterization and cancellation of power-line-induced motional-mode frequency noise in a trapped-ion system
Jaehun You, Jiyong Kang, Kyunghye Kim +2
The stability of motional-mode frequency is essential for realizing high-fidelity quantum gates in trapped-ion quantum computing. While broadband Gaussian noise has been extensivel…
Multimode Phonon-Number Measurement and Single-shot Superparity Measurement using Dispersive Shifts in a Trapped Ion
Wonhyeong Choi, Jiyong Kang, Kyunghye Kim +3
Dispersive shifts are a widely used tool for bosonic readout and control in circuit quantum electrodynamics, yet they remain relatively unexplored in trapped-ion motional systems.…
Phase-Space Topology in a Single-Atom Synthetic Dimension
Kyungmin Lee, Sunkyu Yu, Jiyong Kang +5
We investigate topological features in the synthetic Fock-state lattice (FSL) of a single-atom system described by the quantum Rabi model. By diagonalizing the Hamiltonian, we iden…
Two-Mode Bosonic State Tomography with Single-Shot Joint-Parity Measurement of a Trapped Ion
Honggi Jeon, Jiyong Kang, Wonhyeong Choi +3
The full characterization of a continuous-variable quantum system is a challenging problem. For the trapped-ion system, a number of methods of measuring the quantum states have bee…
A silicon-based ion trap chip protected from semiconductor charging
Daun Chung, Kwangyeul Choi, Woojun Lee +15
Silicon-based ion trap chips can benefit from existing advanced fabrication technologies, such as multi-metal layer techniques for two-dimensional architectures and silicon photoni…
Micromotion compensation of trapped ions by qubit transition and direct scanning of dc voltages
Woojun Lee, Daun Chung, Jiyong Kang +4
Excess micromotion is detrimental to accurate qubit control of trapped ions, thus measuring and minimizing it is crucial. In this paper, we present a simple approach for measuring…
Experimental Realization of Entangled Coherent States in Two-dimensional Harmonic Oscillators of a Trapped Ion
Honggi Jeon, Jiyong Kang, Jaeun Kim +3
Entangled coherent states play pivotal roles in various fields such as quantum computation, quantum communication, and quantum sensing. We experimentally demonstrate the generation…