The Einstein solid is made up of single-frequency quantum harmonic oscillators, ϵ = �?ω = h ν displaystyle epsilon =hbar omega =hnu Zhang et al. analyzed at how the surface morphology and melting state of pure Al2O3 ceramics modified on account of adjustments in laser parameters. The laser power was https://x.com/hongyuxin20/status/1817067391714754848