35 citations · 56 across the 5 of their papers we have counts for
5 papers
Analytical Solution of Poisson's Equation with Application to VLSI Global Placement
Wenxing Zhu, Zhipeng Huang, Jianli Chen +1
Poisson's equation has been used in VLSI global placement for describing the potential field caused by a given charge density distribution. Unlike previous global placement methods…
Flexible Multiple-Objective Reinforcement Learning for Chip Placement
Fu-Chieh Chang, Yu-Wei Tseng, Ya-Wen Yu +11
Recently, successful applications of reinforcement learning to chip placement have emerged. Pretrained models are necessary to improve efficiency and effectiveness. Currently, the…
Foldy-Wouthuysen transformation for gapped Dirac fermions in two-dimensional semiconducting materials and valley excitons under external fields
Yao-Wen Chang, Yia-Chung Chang
In this work, we provide a detailed derivation of Foldy-Wouthuysen (FW) transformation for two-dimensional (2D) gapped Dirac fermions under external fields and apply the formalism…
Variationally optimized orbital approach to trions in two-dimensional materials
Yao-Wen Chang, Yia-Chung Chang
In this work, trions in two-dimensional (2D) space are studied by variational method with trial wavefunctions being constructed by linear combinations of 2D slater-type orbitals (S…
Many-body theory of optical absorption in doped two-dimensional semiconductors
Yao-Wen Chang, David R. Reichman
In this article, we use a many-body approach to study the absorption spectra of electron-doped two-dimensional semiconductors. Optical absorption is modeled by a many-body scatteri…