National Changhua University of Education

output

19982026

most citedOrder parameter of MgB_2: a fully gapped superconductor

158 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

156 papers

astro-ph.IM2026

Long-term performance of SiPMs in space environment measured by GRBAlpha, GRBBeta, and VZLUSAT-2 CubeSats

Jakub Ripa, Filip Munz, Marianna Dafcikova +46

In this work, we report the successful application of silicon photomultipliers (SiPMs) in gamma-ray burst (GRB) detectors used in CubeSats operating in the low Earth orbit (LEO) ra…

hep-th2026

Relativistic single-electron wavepacket in quantum electromagnetic fields II: Quantum radiation emitted by a uniformly accelerated electron

Shih-Yuin Lin, Bei-Lok Hu

We compute the quantum radiation emitted by wavepackets of relativistic single electrons, both at rest and undergoing uniform acceleration in the Minkowski vacuum of the electromag…

hep-ex2026

The Search for $K_{L} \to π^{0} π^{0} γ γ$ and $K_{L} \to π^{0} π^{0} X$ where $X \to 2 γ$ at the KOTO Experiment

J. Redeker, C. Lin, Y. W. Wah +23

We performed searches for $K_{L} \to π^{0} π^{0} X$ where $X$ may be an axion-like particle which promptly decays to two photons, and the first search for $K_{L} \to π^{0} π^{0} γ γ$ …

astro-ph.IM2026

In-orbit Demonstration of X-ray Pulsar Navigation with NinjaSat

Naoyuki Ota, Takuya Takahashi, Toru Tamagawa +26

This study demonstrated the pulsar navigation capability of the CubeSat X-ray observatory NinjaSat, which is equipped with two Gas Multiplier Counters (GMCs). The GMCs are sensitiv…

cs.CV2026

Two-step Authentication: Multi-biometric System Using Voice and Facial Recognition

Kuan Wei Chen, Ting Yi Lin, Wen Ren Yang +2

We present a cost-effective two-step authentication system that integrates face identification and speaker verification using only a camera and microphone available on common devic…

hep-ex2025

Search for Dark Particles in $K_{L}^{0} \to γ X$ at the KOTO Experiment

T. Wu, Y. C. Tung, Y. B. Hsiung +24

We report a search for an invisible particle $X$ in the decay $K_{L}^{0} \to γ X$ ( $X \to invisible$ ), where $X$ can be interpreted as a massless or massive dark photon. N…

astro-ph.HE2025★ 4 cited

Vacuum birefringence and the polarized X-ray emission from a radio magnetar

Rachael E. Stewart, Hoa Dinh Thi, George Younes +13

Magnetars are isolated neutron stars with exceptionally strong surface fields exceeding $1 0^{14}$ G. Their bright X-ray emission probes physical regimes in which quantum electrodyn…

astro-ph.IM2025

Effectiveness of Stacks in the Stacked Hilbert-Huang Transform

Lupin Chun-Che Lin, Chin-Ping Hu, Chien-Chang Yen +6

The Hilbert-Huang transform (HHT) consists of empirical mode decomposition (EMD), which is a template-free method that represents the combination of different intrinsic modes on a…

astro-ph.CO2025

Genetic algorithm demystified for cosmological parameter estimation

Reginald Christian Bernardo, Yun Chen

Genetic algorithm (GA) belongs to a class of nature-inspired evolutionary algorithms that leverage concepts from natural selection to perform optimization tasks. In cosmology, the…

math.RA2024

Prime rings having nontrivial centralizers of (skew) traces of Lie ideals

Tsiu-Kwen Lee, Jheng-Huei Lin

Let $R$ be a prime ring with center $Z (R)$ and with involution $*$ . Given an additive subgroup $A$ of $R$ , let $T (A) := {x + x^{*} ∣ x \in A}$ and $K_{0} (A) := {x - x^{*} ∣ x \in A}$ . Let…

astro-ph.IM2024★ 7 cited

NinjaSat: Astronomical X-ray CubeSat Observatory

Toru Tamagawa, Teruaki Enoto, Takao Kitaguchi +22

NinjaSat is an X-ray CubeSat designed for agile, long-term continuous observations of bright X-ray sources, with the size of 6U ( $100 \times 200 \times 300$ mm $^{3}$ ) and a mass of 8 kg.…

astro-ph.HE2024★ 11 cited

NinjaSat monitoring of Type-I X-ray bursts from the clocked burster SRGA J144459.2 $-$ 604207

Tomoshi Takeda, Toru Tamagawa, Teruaki Enoto +25

The CubeSat X-ray observatory NinjaSat was launched on 2023 November 11 and has provided opportunities for agile and flexible monitoring of bright X-ray sources. On 2024 February 2…

astro-ph.IM2024

Energy calibration of GTM on ground

Chien-You Huang, Hsiang-Kuang Chang, Chih-Hsun Lin +10

The Gamma-ray Transients Monitor (GTM) on board the Formosat-8B (FS-8B) satellite is designed to detect and localize Gamma-Ray Bursts (GRBs). By utilizing 2+2 CITIROC chips to mani…

math.RA2024

Commutators and products of Lie ideals of prime rings

Tsiu-Kwen Lee, Jheng-Huei Lin

Motivated by some recent results on Lie ideals, it is proved that if $L$ is a Lie ideal of a simple ring $R$ with center $Z (R)$ , then $L \subseteq Z (R)$ , $L = Z (R) a + Z (R)$ for some non…

cond-mat.stat-mech2024

Coexistence of distinct nonuniform nonequilibrium steady states in Ehrenfest multiurn model on a ring

Chi-Ho Cheng, Pik-Yin Lai

The recently proposed Ehrenfest M-urn model with interactions on a ring is considered as a paradigm model which can exhibit a variety of distinct nonequilibrium steady states. Unli…

astro-ph.HE2024★ 30 cited

Rapid spin changes around a magnetar fast radio burst

Chin-Ping Hu, Takuto Narita, Teruaki Enoto +12

Magnetars are neutron stars with extremely high magnetic fields that exhibit various X-ray phenomena such as sporadic sub-second bursts, long-term persistent flux enhancements, and…

cond-mat.mtrl-sci2024★ 7 cited

Unveiling the stacking-dependent electronic properties of 2D ultrathin rare-earth metalloxenes family LnX $_{2}$ (Ln = Eu, Gd, Dy; X = Ge, Si)

Polina M. Sheverdyaeva, Alexey N. Mihalyuk, Jyh-Pin Chou +4

The studies of electronic effects in reduced dimensionality have become a frontier in nanoscience due to exotic and highly tunable character of quantum phenomena. Recently, a new c…

cond-mat.stat-mech2024★ 1 cited

Non-equilibrium Dynamics and Phase Transitions in Potts model and Interacting Ehrenfest urn model

Chi-Ho Cheng, Pik-Yin Lai

We show that the recently proposed interacting Ehrenfest M-urn model at equilibrium can be exactly mapped to a mean-field M-state Potts model. By exploiting this correspondence, we…

astro-ph.HE2024★ 16 cited

Similarity to earthquakes again: periodic radio pulses of the magnetar SGR 1935+2154 are accompanied by aftershocks like fast radio bursts

Yuya Tsuzuki, Tomonori Totani, Chin-Ping Hu +1

It was recently discovered that the time correlations of repeating fast radio bursts (FRBs) are similar to earthquake aftershocks. Motivated by the association between FRBs and mag…

hep-th2024★ 2 cited

Relativistic single-electron wavepacket in quantum electromagnetic fields: Quantum coherence, correlations, and the Unruh effect

Shih-Yuin Lin, Bei-Lok Hu

Conventional formulation of QED since the 50s works very well for stationary states and for scattering problems, but with newly arisen challenges from the 80s on, where real time e…

quant-ph2023★ 5 cited

Accurate harmonic vibrational frequencies for diatomic molecules via quantum computing

Shih-Kai Chou, Jyh-Pin Chou, Alice Hu +2

During the noisy intermediate-scale quantum (NISQ) era, quantum computational approaches refined to overcome the challenge of limited quantum resources are highly valuable. However…

cond-mat.stat-mech2023★ 4 cited

Theory of Non-equilibrium Asymptotic State Thermodynamics: Interacting Ehrenfest Urn Ring as an Example

Chi-Ho Cheng, Pik-Yin Lai

A generalized class of non-equilibrium state, called non-equilibrium asymptotic state (NEAS), is proposed. The NEAS is constructed within the framework of the Fokker-Planck equatio…

cond-mat.str-el2023★ 9 cited

Magnetic impurities in an altermagnetic metal

Yu-Li Lee

We study the physics of dilute magnetic impurities in a two-dimensional altermagnetic metal. For the single impurity case, although the spin degeneracy is broken in an altermagneti…

hep-ex2023

Suppression of Neutron Background using Deep Neural Network and Fourier Frequency Analysis at the KOTO Experiment

Y. -C. Tung, J. Li, Y. B. Hsiung +9

We present two analysis techniques for distinguishing background events induced by neutrons from photon signal events in the search for the rare $K_{L}^{0} \to π^{0} ν ν ˉ$ decay a…

Long-term performance of SiPMs in space environment measured by GRBAlpha, GRBBeta, and VZLUSAT-2 CubeSats

Relativistic single-electron wavepacket in quantum electromagnetic fields II: Quantum radiation emitted by a uniformly accelerated electron

The Search for KL​→π0π0γγ and KL​→π0π0X where X→2γ at the KOTO Experiment

In-orbit Demonstration of X-ray Pulsar Navigation with NinjaSat

Two-step Authentication: Multi-biometric System Using Voice and Facial Recognition

Search for Dark Particles in KL0​→γX at the KOTO Experiment

Vacuum birefringence and the polarized X-ray emission from a radio magnetar

Effectiveness of Stacks in the Stacked Hilbert-Huang Transform

Genetic algorithm demystified for cosmological parameter estimation

Prime rings having nontrivial centralizers of (skew) traces of Lie ideals

NinjaSat: Astronomical X-ray CubeSat Observatory

NinjaSat monitoring of Type-I X-ray bursts from the clocked burster SRGA J144459.2−604207

Energy calibration of GTM on ground

Commutators and products of Lie ideals of prime rings

Coexistence of distinct nonuniform nonequilibrium steady states in Ehrenfest multiurn model on a ring

Rapid spin changes around a magnetar fast radio burst

Unveiling the stacking-dependent electronic properties of 2D ultrathin rare-earth metalloxenes family LnX2​ (Ln = Eu, Gd, Dy; X = Ge, Si)

Non-equilibrium Dynamics and Phase Transitions in Potts model and Interacting Ehrenfest urn model

Similarity to earthquakes again: periodic radio pulses of the magnetar SGR 1935+2154 are accompanied by aftershocks like fast radio bursts

Relativistic single-electron wavepacket in quantum electromagnetic fields: Quantum coherence, correlations, and the Unruh effect

Accurate harmonic vibrational frequencies for diatomic molecules via quantum computing

Theory of Non-equilibrium Asymptotic State Thermodynamics: Interacting Ehrenfest Urn Ring as an Example

Magnetic impurities in an altermagnetic metal

Suppression of Neutron Background using Deep Neural Network and Fourier Frequency Analysis at the KOTO Experiment

The Search for $K_{L} \to π^{0} π^{0} γ γ$ and $K_{L} \to π^{0} π^{0} X$ where $X \to 2 γ$ at the KOTO Experiment

Search for Dark Particles in $K_{L}^{0} \to γ X$ at the KOTO Experiment

NinjaSat monitoring of Type-I X-ray bursts from the clocked burster SRGA J144459.2 $-$ 604207

Unveiling the stacking-dependent electronic properties of 2D ultrathin rare-earth metalloxenes family LnX $_{2}$ (Ln = Eu, Gd, Dy; X = Ge, Si)