New Quantum Materials for Next-Generation Quantum Systems
In this proposal, we aim to develop new material systems based on the chemically prepared colloidal quantum dot (CQD) system as a practical platform for fabricating scalable solid-state qubits for quantum information processing applications. Quantum computation (and simulation) is one of the new tools that enable significant speedup in solving the problems complex for traditional digital computers. At the core of this problem is the quantum entanglement and algorithms to perform the operations using long-lived coherence to accelerate computation process. To realize such quantum information processing, preparation of the stable and controllable superposition of the quantum state created from the coupled qubits in a scalable manner is necessary. Recently, lithographically patterned superconducting qubits made much progress in building prototype quantum computing hardware. Despite such progress, continued efforts are being made to develop other platforms for constructing qubits to overcome the shortcomings of currently explored quantum systems, such as limited scalability and difficulty of fabrication, while harnessing the superior performance of more traditional systems such as cold ions or atoms in optical traps. To this end, the team aims to explore chemically prepared CQD systems carrying quantum information with very high ensemble uniformity of the structure and property as the new building blocks of the qubits that are compatible with scalable manufacturing.