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Fidelity qst

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 https://platinum-ifa.com

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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

Study of quantum state transmission across a spin chain and two …

Category:Maximum achievable average QST fidelity F [cf. Eq. (11)] …

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Fidelity qst

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WebMaximum achievable average QST fidelity F [cf. Eq. (11)] after one Rabi-like oscillation period, that is, τ=2π/δωm,N, vs Jmod/J. We have set L=102 and η=−0.8 (about J1/J2=0.11) using the... WebDownload scientific diagram (Color online) Fidelity ( ¯ F) versus size of the heavily reduced dataset (M data ) computed for FFNN based QST of (a) two-qubit Bell states, where the different ...

Fidelity qst

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WebSep 1, 2014 · The reason is that if the gap is too large, the QST period increases exponentially with the distance between two distant parities; when the gap is too small, the fidelity of the QST is reduced. In this paper, the quantum transmission of an electron through an IGS (serving as the data bus) is studied by theoretical analysis and numerical … WebAbstract. Reconstructing the state of many-body quantum systems is of fundamental importance in quantum information tasks, but extremely challenging due to the curse of dimensionality. In this work, we present a quantum tomography approach based on neural networks to achieve the ultrafast reconstruction of multi-qubit states.

WebSep 27, 2024 · Quantum state tomography (QST) is a challenging task in intermediate-scale quantum devices. Here, we apply conditional generative adversarial networks … WebAug 29, 2014 · However, for the intermediate coupling regime J ~ g, as the time needed for QST will be T i ~ 1/J ~ 1/g, we expect higher fidelity QST than that in the two other regimes. For verification purpose, we plot the fidelity of the QST process in Fig. 3(a) with g 2 = g 1 = 1, ξ = 0.03, and 0.01 ≤ J ≤ 3. It is clear that the fidelity presents ...

WebThe QST is a coherent quantum process where, via the e-ph interaction, the photon state information can be extracted and stored in a valley qubit, and the reverse process that moves the state... WebThe QST process for the exponential protocol is still about 10 times faster than its cosine counterpart, since fidelity is stabilized above 0.99 after t * = 91/J 0 for the exponential protocol as ...

WebIt is well known that designing high fidelity quantum state transfer (QST) between spatially separated hybrid quantum systems plays a key role in quantum information process such as long range quantum communication [1] and distributed quantum computation [2]. By using shaped pulses method, QST can be implemented through quantum interface and ...

WebWe stand ready to serve. As a full-service bank we offer premier banking services that keep you connected to your money while building a sound financial future. We help people … download assassin creed 4 torrentWebSep 12, 2024 · A quantum state contains all the information of a quantum system, which can be described by a state vector or a density matrix. For classical systems, one can … clark county court records searchWebAug 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... clark county court jury dutyWebNov 4, 2013 · To our surprise, the fidelity of QST is hardly determined by details but rather on the general architecture of J i,i+1. Most configurations with larger values of J i , i +1 in middle sites of the ... clark county courthouse wisconsinWebWe propose an efficient scheme to realize quantum state transfer (QST) in coupled cavities. An important advantage is that QST can be completed via quantum Zeno dynamics. … clark county courthouse nevadaWebAug 29, 2014 · Here, we propose a scheme for high fidelity quantum state transfer between a superconducting qubit and a nitrogen-vacancy center in diamond, which are coupled to a superconducting... clark county courts anonymous case searchWebMay 13, 2024 · Recently, high-fidelity QST in a quantum network or between an optomechanical cavity and nuclear spins of nitrogen-vacancy centers has been … clark county court number indiana