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MODELING AND DESIGN OF A PHOTONIC CRYSTAL CHIP HOSTING A QUANTUM NETWORK MADE OF SINGLE SPINS IN QUANTUM DOTS THAT INTERACT VIA SINGLE PHOTONS
| Title: | MODELING AND DESIGN OF A PHOTONIC CRYSTAL CHIP HOSTING A QUANTUM NETWORK MADE OF SINGLE SPINS IN QUANTUM DOTS THAT INTERACT VIA SINGLE PHOTONS. |
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| Name(s): |
Seigneur, Hubert, Author Schoenfeld, Winston, Committee Chair University of Central Florida, Degree Grantor |
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| Type of Resource: | text | |
| Date Issued: | 2010 | |
| Publisher: | University of Central Florida | |
| Language(s): | English | |
| Abstract/Description: | In this dissertation, the prospect of a quantum technology based on a photonic crystal chip hosting a quantum network made of quantum dot spins interacting via single photons is investigated. The mathematical procedure to deal with the Liouville-Von Neumann equation, which describes the time-evolution of the density matrix, was derived for an arbitrary system, giving general equations. Using this theoretical groundwork, a numerical model was then developed to study the spatiotemporal dynamics of entanglement between various qubits produced in a controlled way over the entire quantum network. As a result, an efficient quantum interface was engineered allowing for storage qubits and traveling qubits to exchange information coherently while demonstrating little error and loss in the process; such interface is indispensable for the realization of a functional quantum network. Furthermore, a carefully orchestrated dynamic control over the propagation of the flying qubit showed high-efficiency capability for on-chip single-photon transfer. Using the optimized dispersion properties obtained quantum mechanically as design parameters, a possible physical structure for the photonic crystal chip was constructed using the Plane Wave Expansion and Finite-Difference Time-Domain numerical techniques, exhibiting almost identical transfer efficiencies in terms of normalized energy densities of the classical electromagnetic field. These promising results bring us one step closer to the physical realization of an integrated quantum technology combining both semiconductor quantum dots and sub-wavelength photonic structures. | |
| Identifier: | CFE0003433 (IID), ucf:48391 (fedora) | |
| Note(s): |
2010-12-01 Ph.D. Optics and Photonics, College of Optics and Photonics Masters This record was generated from author submitted information. |
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| Subject(s): |
Quantum optics Quantum networks Photonic crystal Single photon Quantum dots Density matrix Quatum information processing Qubit Entanglement |
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| Persistent Link to This Record: | http://purl.flvc.org/ucf/fd/CFE0003433 | |
| Restrictions on Access: | public | |
| Host Institution: | UCF |
