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 10 of 10 for “"spin bath"”.
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Revisiting physics of quantum bits
… of single molecule magnets in interaction with a spin bath differs from the commonly quoted result in the literature. It is also shown that the topological effects in such problems are as small as transitional effects to higher excited states beyond the two-level picture. Finally, a simulation of …
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Digital noise reconstruction with a quantum sensor
… magnetic noise generated by a dipolarly coupled spin bath. Combining theoretical and simulation results, we conclude that the accuracy of our Walsh reconstruction method is only limited by the time-space sampling and can be easily suppressed by increasing the reconstruction order. We then perform …
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Decoherence and Dynamical Decoupling in Solid-State Spin Qubits
… is a study of the decoherence of a solid-state spin qubit, either that of a localized electron spin or a donor nucleus, caused by a nuclear spin bath relevant to semiconductor quantum computer architectures. In the presence of an external magnetic field and at low temperatures, the dominant …
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NV diamond project for nEDM
… of the nEDM experiment. The driven and free spin dynamics of the NV center are also investigated in this work. Studying the evolution of the NV center spin gives us important clues about its spin bath environment and the characteristic time constants over which the NV spin states decay. These …
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Optical and spin properties of nitrogen vacancy centers in bulk and nanocrystalline diamond
… frequency magnetic measurements to determine the spin properties of single NV centers by measuring their couplings to neighboring paramagnetic nuclei as well as to a spin bath. Through these efforts, I was able to successfully confirm that the microscope was capable of identifying and measuring …
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The tin-vacancy centre in diamond: a coherent spin-photon interface for quantum network nodes
Quantum networks require spin-photon interfaces capable of generating entanglement between a stationary qubit and flying photons. So far, such an interface with a large emission rate of indistinguishable photons and excellent spin properties has been missing. Group IV colour centres in diamond …
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Optical and spin coherence properties of Rb atoms in solid neon for magnetic field sensing
… interest has emerged in solid-state electron spin systems for magnetic field sensing and imaging with nanoscale spatial resolution. The goal is to detect and resolve a single nuclear spin. A significant application for such a spatial resolution is the imaging of complex biological molecules. …
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Developing the spin qubit of the tin-vacancy center in diamond for quantum networks
… requires developing a system with excellent spin and photonic properties [8]. To date, no system has demonstrated excellence in both of these regards simultaneously. At a high level, this thesis develops the spin properties of the tin-vacancy (SnV) center in diamond, a system for which the …
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Photon-mediated entanglement of electron spins in a dynamic solid-state environment
… dots can act as an interface between single spins and photons. They combine the flexibility and scalability of semiconductor systems with near-perfect two level systems, emitting highly coherent single photons. In potential quantum information processing architectures based upon optical …
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Studio multiscala degli stati elettronici e di spin indotti da difetti di punto in semiconduttori a banda larga e prospettive per le tecnologie quantistiche
… centro di colore, modellandolo come uno spin elettronico (che si comporta come un qubit in condizioni appropriate) che interagisce magneticamente con il bagno di spin nucleari in SiC contenente i nuclei Si-29 e C-13 nella loro naturale concentrazione isotopica. Calcoliamo l'energetica …