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 5 of 5 for “"nuclear ensemble"”.
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Coherence and state engineering of an optically active central spin system
… probe the collective dynamics of its resident nuclear spin ensemble. An all-optical quantum control of the electron spin is realised for the first time in a GaAs QD and subsequently used to refocus the strong hyperfine interaction between the spin and the nuclear ensemble. The measurement …
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Tuning the coherent electron-nuclear interaction in a semiconductor quantum dot
… spin system, as it interacts with the ∼ 10^5 nuclear spins that compose the quantum dot. Ideally, this system can be used to implement a multi-qubit register formed by collective excitations of the nuclei surrounding the electron, or to probe fundamental many-body physics through engineering …
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Initialisation, control and readout of a nuclear-magnon quantum register
… spin is coupled to approximately 100,000 nuclear spins. Combining these two elements, we have an isolated many-body nuclear ensemble interfaced to a central, proxy qubit, which we can interrogate optically. The system then plays host to a plethora of rich spin physics and complex many-body …
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A tale of two interfaces: photons and spins linked by a solid-state artificial atom
… coherence of the surrounding environment of nuclear spins. This dissertation presents a series of experiments which address some of the challenges of exploiting quantum dots for quantum technologies. First, we implement a new technique for performing coherent control of a spin confined to a …
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Theoretical study of electronic absorption spectra and photodissociation dynamics of atmospherically relevant molecules
The absorption of solar radiation by atmospheric species and the corresponding photoinduced processes, define the chemistry of a planet's atmosphere. While many of these photoinduced processes and their effects are well- known, even in Earth's atmosphere there are gaps in our understanding. The …