In recent years, motivated by the approaching of quantum limit for classic information science, the development of quantum information science (QIS) has drawn considerable interest from chemists and physicians. Different from classical bits which can only be localized on two different states, quantum bit, which can be simplified as qubit, has the ability of superposition based on its quantum nature, thus able to load much more information on a single informational unit, which is potential for the next generation of informational science. In parallel with the development of applications based on qubits, lots of scientists devoted themselves to the discovery of new types of qubits, together with suitable platforms for the study and application of those developed qubits. Among all research within the framework of QIS, there are four different types of qubits that were most widely studied and used: photons, electron spins, nuclear spins, and superconducting circuits. For the study based on those qubits, lots of different platforms have been developed. Electron spins based on organic molecular system have drawn significant research interests based on its advantages including synthetic tunability, ease of scaling up, developed manipulation method based on microwave pulse, and relatively long decoherence lifetime. On of the main limitation for further application of this system is the initialization method since general thermos-initialization method can only be reach under severe conditions for electron spins. However, the spin qubit pair (SQP) generated from photoexcitation process of organic donor acceptor pair (D•+–A•−) can provide well-initialized spin state, thus can be used as the rescue of initialization method. In this dissertation, three different works about the study and application of SQP for QIS based on photoexcitation of organic triad systems will be discussed. One of them will be based on fundamental study (chapter 2) and the other two will be based on applications (chapter 3 and 4).

Creator

• Xie, Fangbai

DOI

• https://doi.org/10.21985/n2-p74x-8k35

Subject

• Organic chemistry

Language

• en

Alternate Identifier

• etdadmin_upload_1018019
• http://dissertations.umi.com/northwestern:16797

Date created

• 2023-01-01

Resource type

• Dissertation

Rights statement

• In Copyright