The correlations of stellar tidal disruption rates with properties of massive black holes and their host galaxies

Kavli Affiliate: Qingjuan Yu | First 5 Authors: Yunfeng Chen, Qingjuan Yu, Youjun Lu, , | Summary: Stars can be either disrupted as tidal disruption events (TDEs) or swallowed as a whole by massive black holes (MBHs) at galactic centers when they approach sufficiently close to these MBHs. In this work, we investigate the correlations […]


Continue.. The correlations of stellar tidal disruption rates with properties of massive black holes and their host galaxies

Discovery of strongly variable X-ray polarization in the neutron star low-mass X-ray binary transient XTE J1701$-$462

Kavli Affiliate: Roger W. Romani | First 5 Authors: Massimo Cocchi, Andrea Gnarini, Sergio Fabiani, Francesco Ursini, Juri Poutanen | Summary: After about 16 years since its first outburst, the transient neutron star low-mass X-ray binary XTE J1701$-$462 turned on again in September 2022, allowing for the first study of its X-ray polarimetric characteristics by […]


Continue.. Discovery of strongly variable X-ray polarization in the neutron star low-mass X-ray binary transient XTE J1701$-$462

WiCo: Win-win Cooperation of Bottom-up and Top-down Referring Image Segmentation

Kavli Affiliate: Cheng Peng | First 5 Authors: Zesen Cheng, Peng Jin, Hao Li, Kehan Li, Siheng Li | Summary: The top-down and bottom-up methods are two mainstreams of referring segmentation, while both methods have their own intrinsic weaknesses. Top-down methods are chiefly disturbed by Polar Negative (PN) errors owing to the lack of fine-grained […]


Continue.. WiCo: Win-win Cooperation of Bottom-up and Top-down Referring Image Segmentation

Frequency Modulation of Gravitational Waves by Ultralight Scalar Dark Matter

Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, , , , | Summary: The oscillating pressure of the ultralight scalar dark matter (DM) can induce the oscillation of the local gravitational potential. Similar to the time-dependent frequency shift for the pulse signals of pulsars, the oscillation of the local gravitational potential can induce […]


Continue.. Frequency Modulation of Gravitational Waves by Ultralight Scalar Dark Matter

Frequency Modulation of Gravitational Waves by Ultralight Scalar Dark Matter

Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, Yin Zhong, , , | Summary: The oscillating pressure of the ultralight scalar dark matter (DM) can induce the oscillation of the local gravitational potential. Similar to the time-dependent frequency shift for the pulse signals of pulsars, the oscillation of the local gravitational potential can […]


Continue.. Frequency Modulation of Gravitational Waves by Ultralight Scalar Dark Matter

AdaSelection: Accelerating Deep Learning Training through Data Subsampling

Kavli Affiliate: Jia Liu | First 5 Authors: Minghe Zhang, Chaosheng Dong, Jinmiao Fu, Tianchen Zhou, Jia Liang | Summary: In this paper, we introduce AdaSelection, an adaptive sub-sampling method to identify the most informative sub-samples within each minibatch to speed up the training of large-scale deep learning models without sacrificing model performance. Our method […]


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High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Bohan Li, Zhiquan Yuan, Warren Jin, Lue Wu, Joel Guo | Summary: By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high-$Q$ silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated via the photogalvanic-induced second-order nonlinearity. A record-low frequency noise floor […]


Continue.. High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator

Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Bohan Li, Zhiquan Yuan, Warren Jin, Lue Wu, Joel Guo | Summary: By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high-$Q$ silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated via the photogalvanic-induced second-order nonlinearity. A record-low frequency noise floor […]


Continue.. High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator