66 citations · 226 across the 12 of their papers we have counts for
13 papers
Observation of a topological edge state among localized bulk states in the anisotropic quantum Rabi model
Sungjoo Lim, Chanyang Im, Christopher G. Yale +7
Topological phases are governed by discrete symmetries that protect boundary modes against local perturbations. When translational periodicity is absent, the bulk states also becom…
A photonic quantum engine driven by superradiance
Jinuk Kim, Seung-hoon Oh, Daeho Yang +3
Performance of nano- and micro-scale heat engines can be improved with a help from quantum mechanical phenomena. Recently, heat reservoirs with quantum coherence have been proposed…
Design and characterization of individual addressing optics based on multi-channel acousto-optic modulator for Yb qubits
Sungjoo Lim, Seunghyun Baek, Jacob Whitlow +7
We present the design and characterization of individual addressing optics based on a multi-channel acousto-optic modulator (AOM) for trapped ytterbium-171 ions. The design paramet…
Direct measurement of isotope shifts in the barium 6s S-5d6p D transition
Jungwoo Choi, Eunhwi Lee, Dahyun Yum +2
We report the direct measurement of isotope shifts of the barium 6s S --5d6p D 413-nm electric quadrupole transition, which is utilized for efficient b…
Modular Software for Real-Time Quantum Control Systems
Leon Riesebos, Brad Bondurant, Jacob Whitlow +9
Real-time control software and hardware is essential for operating quantum computers. In particular, the software plays a crucial role in bridging the gap between quantum programs…
High stability cryogenic system for quantum computing with compact packaged ion traps
Robert F. Spivey, Ismail V. Inlek, Zhubing Jia +9
Cryogenic environments benefit ion trapping experiments by offering lower motional heating rates, collision energies, and an ultra-high vacuum (UHV) environment for maintaining lon…
Observation of scalable sub-Poissonian-field lasing in a microlaser
Byoung-moo Ann, Younghoon Song, Junki Kim +2
Sub-Poisson field with much reduced fluctuations in a cavity can boost quantum precision measurements via cavity-enhanced light-matter interactions. Strong coupling between an atom…
Realization of superabsorption by time reversal of superradiance
Daeho Yang, Seung-hoon Oh, Junseok Han +5
Emission and absorption of light lie at the heart of light-matter interaction. Although emission and absorption rates are regarded as intrinsic properties of atoms and molecules, v…
Coherent single-atom superradiance
Junki Kim, Daeho Yang, Seung-hoon Oh +1
Quantum effects, prevalent in the microscopic scale, generally elusive in macroscopic systems due to dissipation and decoherence. Quantum phenomena in large systems emerge only whe…
Generation of an optical Schrödinger-cat-like state in a non-ideal cavity by injecting opposite-phase atomic dipoles
Daeho Yang, Junki Kim, Moonjoo Lee +2
We propose a method to generate an optical Schrödinger-cat-like state in a cavity in a substantial decoherence regime. Even when the cavity decay rate is considerably large, a cat-…
Indirect measurement of three-photon correlation in nonclassical light sources
Byoung-Moo Ann, Younghoon Song, Junki Kim +2
We have observed the three-photon correlation in nonclassical light sources by using an indirect measurement scheme based on the dead time effect of photon-counting detectors. We f…
Correction to the detector-dead-time effect on the second-order correlation of stationary sub-Poissonian light in a two-detector configuration
Byoung-moo Ann, Younghoon Song, Junki Kim +2
Exact measurement of the second-order correlation function of a light source is essential when investigating the photon statistics and the light generation process of…
Three-dimensional imaging of cavity vacuum with single atoms localized by a nanohole array
Moonjoo Lee, Junki Kim, Wontaek Seo +4
Zero-point electromagnetic fields were first introduced to explain the origin of atomic spontaneous emission. Vacuum fluctuations associated with the zero-point energy in cavities…