activity
20202025
most citedWeak-lensing Mass Reconstruction of Galaxy Clusters with Convolutional Neural Network

10 citations · 20 across the 4 of their papers we have counts for

collaborators

5 papers

quant-ph2025

Machine Learns Quantum Complexity

Dongsu Bak, Su-Hyeong Kim, Sangnam Park +1

We study how a machine based on deep learning algorithms learns Krylov spread complexity in quantum systems with N x N random Hamiltonians drawn from the Gaussian unitary ensemble.…

astro-ph.GA2024★ 4 cited

Weak-lensing Mass Reconstruction of Galaxy Clusters with a Convolutional Neural Network -- II: Application to Next-Generation Wide-Field Surveys

Sangjun Cha, M. James Jee, Sungwook E. Hong +3

Traditional weak-lensing mass reconstruction techniques suffer from various artifacts, including noise amplification and the mass-sheet degeneracy. In Hong et al. (2021), we demons…

astro-ph.CO2022★ 6 cited

Analyzing Planar Galactic Halo Distributions with Fuzzy/Cold Dark Matter Models

Sangnam Park, Dongsu Bak, Jae-Weon Lee +1

We perform a numerical comparison between the fuzzy dark matter model and the cold dark matter model, focusing on formation of satellite galaxy planes around massive galaxies. Such…

astro-ph.CO2021★ 10 cited

Weak-lensing Mass Reconstruction of Galaxy Clusters with Convolutional Neural Network

Sungwook E. Hong, Sangnam Park, M. James Jee +2

We introduce a novel method for reconstructing the projected matter distributions of galaxy clusters with weak-lensing (WL) data based on convolutional neural network (CNN). Traini…

astro-ph.CO2020

Effective Cross Section of Fuzzy Dark Matter Halos

Dongsu Bak, Jae-Weon Lee, Sangnam Park

We numerically study the movement of two colliding fuzzy dark matter solitons without explicit self-interaction and find the effective cross section of dissipative change in veloci…