Photochromic diarylethenes (DAEs) are among the most promising molecular switching systems for future molecular electronics. Numerous derivatives have been synthesized recently, and experimental quantum yields (QYs) have been reported for two categories of them. Although the QY is one of the most important properties in various applications, it is also the most difficult property to predict bef...

The Weyl geometry promises potential applications in gravity and quantum mechanics. We study the relationships between geometry, entropy entanglement based on endowing Euclidean metric. give formulation of Ricci curvature scalar n-dimensional system. field plays a bridge role to connect curvature, entanglement. also Einstein–Weyl tensor generalized equation 3D vacuum case, which reveals relatio...