Abstract: This study presents a non-Hermitian micro-electromechanical systems (MEMS) disk resonator, exploring the complex eigenvalues of non-Hermitian Hamiltonians and their associated Riemann ...
U.S. President Donald Trump greets Chinese President Xi Jinping before a bilateral meeting at the Gimhae International Airport terminal in Busan, South Korea, Oct. 30, 2025. Credit: Official White ...