Dongchel Shin

Dongchel Shin is a graduate student in mechanical engineering pursuing experimental approaches to test whether gravity behaves as a quantum interaction. His research centers on developing precision measurement systems capable of detecting the angular motion of torsional oscillators at the quantum-noise limit. This work lays the foundation for preparing macroscopic objects in quantum states and probing gravitational interactions. With his second MathWorks Fellowship, Dongchel will advance cavity torsional optomechanics to enhance sensitivity and enable active feedback control in macroscopic quantum systems. He extensively employs MATLAB to model optical systems, simulate mode shapes, analyze feedback performance, and process experimental data. His custom code supports ray transfer matrix analysis, spectral estimation, and noise calibration, enabling the characterization of measurement precision and system stability. His recent demonstration of laser cooling in a centimeter-scale torsional oscillator marks a significant step forward in optomechanical control. This work could open a new experimental pathway toward quantum aspects of gravity, reshaping our understanding of the physical world.