Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"time-bin"”.
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Quantum information applications of frequency upconversion
… for quantum information applications. By combining a bright “escort” beam with a signal photon inside of a periodically poled lithium niobate (PPLN) crystal, we are able to achieve near unit conversion efficiency. We use this conversion process to create high-efficiency infrared single-photon …
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Dynamic Acoustic Control of Semiconductor Quantum Dot-Based Devices for Quantum Light Generation
… has an associated spin that can determine the time bin of a photon, allowing for information encoding in this degree of freedom. We demonstrate coherent operations on this spin and realize a proof-of-principle experiment of the proposed scheme by showing that the time bin of a single-photon is …
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Coherent Interaction Between Laser Photons and Single Spins in InAs Quantum Dots
… system is also utilised to create time-bin encoded qubits with arbitrary phase, by controlling the phase of a laser driving a Raman spin-flip transition. This further emphasises the benefits of single-spin control in a quantum dot. Having demonstrated the above techniques, the …
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A Quantum Light Source for Quantum Information Applications in the Telecom C-Band
… of fine-structure splitting (FSS) and coherence time, in order to determine their suitability for quantum entanglement and interference-based applications. Long coherence times were observed in the majority of the QDs considered, allowing the demonstration of Hong-Ou-Mandel-type two-photon …
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Optical quantum random number generation: applications of single-photon event timing
… and characterization of two photon-arrival-time quantum random number generators (QRNGs). After the QRNGs were completed, it was realized that their performance was severely limited both by the maximum detection rate of the single-photon detectors used, and the precision at which the arrival …
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Design of New-generation Quantum Key Distribution Systems for Secure Communication
… high practicality but incomplete in security • Time-bin-encoding continuous-variable QKD with complete security and high practi- cality Their advantages and drawbacks will be contrasted from both the theoretical and practical perspectives. Adjustments to each protocol will be proposed to gain …
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Predicting and identifying signs of criticality near neuronal phase transition
… to extract amplitude distribution, variance and time-correlation statistics. The analysis is broadened by applying detrended fluctuation analysis (DFA) to detect long-range dependencies in the time-series, and we compare DFA results with power spectral density (PSD). We find that the DFA exponent …
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Reinforcement? Time-based contingencies control local choice
… food ratio changed systematically according to time since the last food delivery from any key. In the experiment reported in Chapter 3, the relative frequency of food deliveries for responding on the two alternatives reversed at a fixed time after the most recent food delivery from any key. …