VTICD 2025 brings together researchers, students, and professionals to
advance quantum simulation methods and computational materials design.
Jointly organized by National Yang Ming Chiao Tung University (Taiwan, R.O.C.)
and Hanoi National University of Education (Viet Nam), the workshop features
expert-guided lectures, hands-on tutorials, and collaborative discussions.
This edition also highlights WannierBSE, a practical workflow for excitonic
and optical-spectrum calculations based on Wannier-function interpolation and
the Bethe–Salpeter equation, with a live demonstration and Q&A.
Hanoi National University of Education
Schedule
Vietnam–Taiwan International Workshop on Computation and Design · October 30 – November 1, 2025· Hanoi, Viet Nam
Venue: Building K, Hanoi National University of Education
Session Chair: Prof. Luc Huy Hoang
09:10 – 09:30 · Lecture 1 — Fundamentals of Solid-State Theory, Prof. Shung‑Jen Cheng (NYCU)
09:30 – 10:00 · Lecture 2 — Dielectric Screening in 2D Materials, Dr. Jheng‑Dong Lin (NYCU)
10:00 – 10:30 · Lecture 3 — Wannierization for 2D Materials, Mr. Chin‑Hung Shih (NYCU)
10:30 – 10:50 · Coffee break
11:00 – 11:50 · Lecture 4 — Excitons in 2D Materials: WannierBSE Tutorial, Dr. Vo Khuong Dien (NYCU)
11:50 – 13:00 · Lunch break
Day 1 (Fri) · October 31, 2025
Oral presentation session
Venue: Building K, Hanoi National University of Education
Session Chairs: Prof. Hung‑Chung Hsueh, Prof. Pham Van Hai
13:00 – 13:20 · Ultrafast Dynamics in Strongly Correlated Quantum Matter: THz Spectroscopy and Applications, Prof. Chih‑Wei Luo (NYCU)
13:20 – 13:40 · Defect‑Rich SnO₂ Nanofiber as an Oxygen‑Defect‑Driven Photoenergy Shield against UV Light Cell Damage, Prof. Ping‑Hung Yeh (TKU)
13:40 – 14:00 · Oxygen Vacancy‑Driven Orbital Kondo Effect in the Rutile Structure: RuO₂ vs IrO₂, Prof. Stefan Kirchner (NYCU)
14:00 – 14:20 · Effect of Oxygen Vacancy on Photocatalytic Performance of Bi‑Based Semiconductors, Prof. Pham Van Hai (HNUE)
14:20 – 14:40 · Coffee break
Session Chairs: Prof. Chih‑Wei Luo, Prof. Nguyen Thi Thao (HNUE)
14:40 – 15:00 · Spectroscopy of Emergent Quantum Phenomena in Novel Materials: A First‑Principles Perspective, Prof. Hung‑Chung Hsueh (TKU)
15:00 – 15:20 · Quantum and Classical Complexity of Quantum Many‑Body Systems, Prof. En‑Jui Kuo (NYCU)
15:20 – 15:40 · Broadband Microwave Coding Absorber Using Genetic Algorithm, Prof. Tran Manh Cuong (HNUE)
15:40 – 16:00 · Numerical Approaches to the Hubbard Model: A Computational Study, Prof. Chia‑Ming Chung (NYCU)
16:00 – 16:20 · Growth Dynamics and Physical Properties of III–VI Two‑Dimensional Semiconductors Grown by Molecular Beam Epitaxy, Prof. Wu‑Ching Chou (NYCU)
16:30 – 17:30 · Free discussion with faculty and students
Day 2 (Sat) · November 1, 2025
09:00 · Closing remarks (HNUE)
Venue: Aurora Premium — A Lifestyle Hotel, Hanoi
WannierBSE Code
WannierBSE is an efficient computational package for solving the Bethe–Salpeter equation (BSE)
for neutral excitons in 2D materials within the Wannier tight‑binding (WTB) framework, implemented
in the MATLAB (single‑machine) and C++ (parallel) languages.
It constructs electron–hole Coulomb kernels using efficient numerical integration
and cubic‑spline interpolation for speed and precision. Based on first‑principles band structures,
Bloch states, and non‑local dielectric functions (from DFT+GW or macroscopic electromagnetic theory),
WannierBSE enables multiscale simulations of excitonic spectra, dipoles, and light–matter interactions
in hybrid 2D materials under complex dielectric environments.
Secretary 1: Prof. Tran Phan Thuy Linh Faculty of Physics, Hanoi National University of Education 136 Xuan Thuy, Cau Giay, Hanoi, Viet Nam Tel: (+84) 914 685 189 · Email: linhtpt@hnue.edu.vn
Secretary 2: Dr. Vo Khuong Dien FPT University – Can Tho Campus Nguyen Van Cu (Extended), An Binh Ward, Can Tho City, Viet Nam Tel: (+84) 793 178 768 · Email: dienvk@fpt.edu.vn
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