School of Science Department of Physics 71 Quantum Computing Based on NV Center in Diamond Supervisor: YANG Sen / PHYS Student: CHENG Ho Yin / COMP Course: UROP 2100, Fall UROP 3100, Spring Quantum computing has emerged as a promising technology that has the potential to change how we process information. Unlike classical computing, which relies on binary bits to store and manipulate data, quantum computing uses quantum bits or qubits that can exist in superposition. This unique property of qubits enables quantum computers to solve certain problems exponentially faster than classical computers, making them particularly useful for tasks such as cryptography, optimization, and simulation. NV centers are point defects in diamond that can be used as qubits due to their long coherence times and ability to be manipulated optically. One of the applications for NV centers is in atomic force microscopy (AFM) due to their unique properties. NV centers can act as sensitive magnetic field sensors, enabling the detection of magnetic interactions at the nanoscale. When integrated with AFM, NV centers allow for high-resolution imaging and characterization of materials by providing information about magnetic properties and local electronic environments. This combination enhances the capabilities of traditional AFM techniques, enabling researchers to study complex materials and biological systems with improved sensitivity and resolution. This project focuses on operation and measurement with AFM on sensing magnetic fields. Quantum Computing Based on NV Center in Diamond Supervisor: YANG Sen / PHYS Student: FAN Jialong / PHYS Course: UROP 1100, Fall This report focuses on the principles, experimental procedures, and operational specifications associated with the experiment I have learned during this semester. Additionally, relevant images showing the procedure and the results of the experiment will be included. The experiment undertaken this semester involved the technique of photoetching on glass sheet. This method employs photoresist, a mask, and specific exposure conditions to create images of predetermined shapes on the glass surface. Photoetching is particularly applicable in the fabrication of waveguides, which are crucial components in quantum computing experiments. Due to the limited number of successful experimental outcomes, I do not have any new discovery, so this part will not be include in this report.
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