535 citations · 1.1k across the 20 of their papers we have counts for
20 papers
Extended High-Mass Axion Search with an Auxetically Tuned Higher-Order-Mode Cavity
Jinsu Kim, Sungjae Bae, Junu Jeong +9
Conventional high-mass axion haloscopes based on the TM mode lose detection volume as the resonant frequency increases. We report an extended axion search using a dielectri…
Search for Axion Dark Matter around \texorpdfstring{}{15.6 microeV} with a Broadly Tunable High-Temperature Superconducting Cavity
Jiwon Lee, Jinsu Kim, Ohjoon Kwon +9
We report an axion dark matter search in the mass range of using a broadly tunable high-temperature superconducting (HTS) haloscope. By soldering…
Extended Haloscope Search and Exclusion of a Candidate Signal near 1.036 GHz
Saebyeok Ahn, Boris I. Ivanov, Ohjoon Kwon +33
We report a follow-up axion haloscope search near 1.036 GHz that completes and extends our previous work [Phys. Rev. X 14, 031023 (2024)], in which a portion of the HEMT-based data…
Josephson Parametric Amplifier based Quantum Noise Limited Amplifier Development for Axion Search Experiments in CAPP
Sergey V. Uchaikin, Jinmyeong Kim, Caglar Kutlu +8
This paper provides a comprehensive overview of the development of flux-driven Josephson Parametric Amplifiers (JPAs) as Quantum Noise Limited Amplifier for axion search experiment…
Parameter optimization of Josephson parametric amplifiers using a heuristic search algorithm for axion haloscope search
Younggeun Kim, Junu Jeong, SungWoo Youn +5
The cavity haloscope is among the most widely adopted experimental platforms designed to detect dark matter axions with its principle relying on the conversion of axions into micro…
Extensive search for axion dark matter over 1\,GHz with CAPP's Main Axion eXperiment
Saebyeok Ahn, JinMyeong Kim, Boris I. Ivanov +33
We report an extensive high-sensitivity search for axion dark matter above 1\,GHz at the Center for Axion and Precision Physics Research (CAPP). The cavity resonant search, exploit…
Experimental search for invisible dark matter axions around 22 μeV
Younggeun Kim, Junu Jeong, SungWoo Youn +9
The axion has emerged as the most attractive solution to two fundamental questions in modern physics related to the charge-parity invariance in strong interactions and the invisibl…
Systematic Approach for Tuning Flux-driven Josephson Parametric Amplifiers for Stochastic Small Signals
Çağlar Kutlu, Saebyeok Ahn, Sergey V. Uchaikin +5
Many experiments operating at millikelvin temperatures with signal frequencies in the microwave regime are beginning to incorporate Josephson Parametric Amplifiers (JPA) as their f…
Four-channel System for Characterization of Josephson Parametric Amplifiers
Boris I. Ivanov, Jinmyeong Kim, Çağlar Kutlu +8
The axion search experiments based on haloscopes at the Center for Axion and Precision Physics Research (CAPP) of the Institute for Basic Science (IBS) in South Korea are performed…
CAPP Axion Search Experiments with Quantum Noise Limited Amplifiers
Sergey V. Uchaikin, Boris I. Ivanov, Jinmyeong Kim +8
The axion is expected to solve the strong CP problem of quantum chromodynamics and is one of the leading candidates for dark matter. CAPP in South Korea has several axion search ex…
Josephson Parametric Amplifier in Axion Experiments
Jinmyeong Kim, Boris I. Ivanov, Çağlar Kutlu +9
The axion is a hypothetical particle, a promising candidate for dark matter, and a solution to the strong CP problem. Axion haloscope search experiments deal with a signal power co…
Near-Quantum-Noise Axion Dark Matter Search at CAPP around 9.5 eV
Jinsu Kim, Ohjoon Kwon, Çağlar Kutlu +9
We report the results of an axion dark matter search over an axion mass range of 9.39-9.51 eV. A flux-driven Josephson parametric amplifier (JPA) was added to the cryogenic rece…
Characterization of a flux-driven Josephson parametric amplifier with near quantum-limited added noise for axion search experiments
Çağlar Kutlu, Arjan F. van Loo, Sergey V. Uchaikin +7
The axion, a hypothetical elementary pseudoscalar, is expected to solve the strong CP problem of QCD and is also a promising candidate for dark matter. The most sensitive axion sea…
Measurement of a Magnonic Crystal at Millikelvin Temperatures
S. Kosen, R. G. E. Morris, A. F. van Loo +1
Hybrid systems combining magnons and superconducting quantum circuits have attracted increasing interest in recent years. Magnonic crystals (MCs) are one of the building blocks of…
Strong coupling of magnons in a YIG sphere to photons in a planar superconducting resonator in the quantum limit
R. G. E. Morris, A. F. van Loo, S. Kosen +1
We report measurements of a superconducting coplanar waveguide resonator (CPWR) coupled to a sphere of yttrium-iron garnet. The non-uniform CPWR field allows us to excite various m…
Time-resolved measurements of surface spin-wave pulses at millikelvin temperatures
A. F. van Loo, R. G. E. Morris, A. D. Karenowska
In this work, we experimentally investigate the propagation of pulsed magnetostatic surface spin-wave (magnon) signals in an yttrium iron garnet (YIG) waveguide at millikelvin temp…
Photon-mediated interactions between distant artificial atoms
Arjan F. van Loo, Arkady Fedorov, Kevin Lalumière +3
Photon-mediated interactions between atoms are of fundamental importance in quantum optics, quantum simulations and quantum information processing. The exchange of real and virtual…
Input-output theory for waveguide QED with an ensemble of inhomogeneous atoms
Kevin Lalumière, Barry C. Sanders, Arjan F. van Loo +3
We study the collective effects that emerge in waveguide quantum electrodynamics where several (artificial) atoms are coupled to a one-dimensional superconducting transmission line…
Demonstrating W-type Entanglement of Dicke-States in Resonant Cavity Quantum Electrodynamics
Jonas A. Mlynek, Abdufarrukh A. Abdumalikov, Johannes M. Fink +5
Nonlinearity and entanglement are two important properties by which physical systems can be identified as non-classical. We study the dynamics of the resonant interaction of up to…
Preparation of Subradiant States using Local Qubit Control in Circuit QED
S. Filipp, A. F. van Loo, M. Baur +2
Transitions between quantum states by photon absorption or emission are intimately related to symmetries of the system which lead to selection rules and the formation of dark state…