WebOct 25, 2007 · We analyzed the yield and fidelity of the quantum state transfer (QST) from a photon polarization qubit to an electron spin qubit in a spin-coherent photodetector consisting of a semiconductor quantum dot. We used a model consisting of the quantum dot, where the QST is carried out, coupled with a photonic cavity. WebMar 22, 2024 · High fidelity QST can be achieved provided one can control the local fields at sites near the sender and receiver , by Lyapunov control , by using automatic spin …
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WebMay 24, 2024 · A key task in quantum communications and quantum networks is the ability of quantum state transfer (QST) with high fidelity between two distant objects [ 1 – 3 ]. The quantum teleportation [ 4, 5] is a well-known method to accomplish this task, but today QST is a terminology with more general usage. WebAug 24, 2006 · We analyzed the fidelity of the quantum state transfer (QST) from a photon-polarization qubit to an electron-spin-polarization qubit in a semiconductor quantum dot, with special attention to the exchange interaction between the electron and the simultaneously created hole. In order to realize a high-fidelity QST we had to separate the electron and … clark county court inmate search
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WebA feasible proposal should be able to perform efficient high-fidelity QST in the shortest possible time. In order to provide the most economical choice of parameters for reaching high transfer efficiency, we used standard numerical methods to integrate the Schrödinger equation for probability amplitudes. Because the scheme relies on ... WebMay 4, 2007 · We theoretically analyze the yield and fidelity of the quantum state transfer (QST) from a photon polarization qubit to an electron spin qubit using a spin‐coherent photo‐detector consisting of a s... WebNov 28, 2014 · Finally, the QST fidelity is optimized as the size of the star increases because the frequency of the exchanges between the core and the periphery increases with the size, whereas the mean decay rate that governs these exchanges decreases. As a result, the larger the size is, the shorter is the time for which the QST becomes optimized … clark county courthouse winchester ky