Xiaotong Yu Email & Phone Number

Boise, Idaho, United States

Boulder, Colorado, United States

SBS (stimulated Brillouin scattering) simulation• Performed numerical simulation for nano-scale waveguide to improve the design of chalcogenide micro-resonator for Stimulated Brillouin Scattering (SBS) based laser.• Analyzed and identified the acoustic modes with high SBS gain in nanoscale silicon waveguides by combining the Python code with COMSOL.• Calculated the SBS gain in the waveguide with three optical forces: electrostriction body force, electrostriction boundary force and radiation pressure separately

Boulder, Colorado, United States

Courses: Quantum Mechanics for Engineers, Transistor - Field Effect Transistor and Bipolar Junction Transistor, Diode - pn Junction and Metal Semiconductor Contact• Facilitate and audit the course and provide feedbacks on the content to enhance the student learning experience.

Boulder, Colorado, United States

Course: Sampled Data and Digital Control System• Grade homework assignments, labs, and exams, and providing them helpful feedback on their responses.• Assist with exam and homework problem reviews.

Boulder, Colorado, United States

Course: Quantum Mechanics for Engineers Specialization• Went through all materials of this specialization and provide the feedbacks on the content of video, presentation, homework and the final exam.

Shanghai, China

The research works I did focus on fast and robust quantum control and single variable control, which can solve many problems in experiment, and the application in the designing of broad-width retarder. Besides, the fast and robust control of two interacting spins is also studied. The main results are as following:Firstly, utilizing invariant theory based inverse engineering, I studied the fast and robust control of two interacting spins with Heisenberg or Ising interactions, designed inversely the driving magnetic fields for achieving fast spin flip or generating the entangled Bell state, and further optimized them with respect to the systematic errors and Dzyaloshinskii-Moriya(DM) interaction. In particular, the designed protocols can suppress efficiently the unwanted transition induced by Dzyaloshinskii-Moriya interaction.Secondly, we proposed the single variable control of shortcuts to adiabaticity, based on inverse engineering, and also improved the fidelity with respect to the systematic errors by combining perturbation theory. Comparing with the previous one, this method can achieve the state transfer by only controlling one parameter, which has strong applied value in quantum dots, optical lattice, optical system and so forth. Thirdly, based on quantum optics analogy, we applied the technology with single variable into the designing of optical devices. By combining perturbation theory, we improved the stability of the system with respect to the input wavelength variations, which lead to the broad-width retarder. This method can be also applied to other analogous systems.

Master'S Degree, Electrical Engineering, 3.94/4.00

Master'S Degree, Physics

Merit-based scholarship.

Bachelor Of Engineering - Be, Electrical And Electronics Engineering, 3.74/4.00

Outstanding Graduates award. Merit-based scholarship.