From the 1 of 4 linked papers with an AI index.
4 papers
The WEST code for large-scale excited-state materials simulations
Victor Wen-zhe Yu, Siyuan Chen, Yu Jin +5
The paper introduces WEST, an open‑source plane‑wave pseudopotential code that enables large‑scale excited‑state simulations of materials using GW, Bethe‑Salpeter, and TDDFT method…
First-principles calculations of internal conversion processes in spin defects
Stefano Paolo Villani, Yu Jin, Giulia Galli
Optically active spin defects are foundational for quantum technologies, yet common approximations underestimate their internal conversion (IC) rates by orders of magnitude. We pro…
Role of ionic quantum-anharmonic fluctuations on the bond length alternation and giant piezoelectricity of conjugated polymers
Stefano Paolo Villani, Lorenzo Monacelli, Paolo Barone +1
Functionalized conjugated polymers are promising materials for electromechanical applications due to predicted giant piezoelectricity, arising from anomalously large dynamical effe…
Phonon-Polaritons in Non-Centrosymmetric Systems: Theory of Terahertz Pump-Optical Probe Spectroscopy
Niccolò Sellati, Jacopo Fiore, Stefano Paolo Villani +2
Hybrid lattice-light modes, known as phonon-polaritons, represent the backbone of advanced protocols based on THz pumping of infrared modes. Here we provide a theoretical framework…