Magnetic MnxGe1-x Dots for Spintronics Applications

Xiu, Faxian; Wang, Yong; Zou, Jin; Kang, Lili

doi:10.5772/35922

Cited by 2 publications

(2 citation statements)

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“…However, because of the difficulty of photonic interaction and the probabilistic nature of linear optical quantum gates, it is difficult to achieve deterministic optical quantum information processing. [12] In recent years, cross-Kerr nonlinearity, [14,15] which is used to introduce the interaction between photons, has been used to achieve some deterministic optical quantum information processing tasks, such as quantum communication, [16][17][18][19][20] quantum logical operations, [21][22][23][24][25] and so on. While in practice these schemes may be almost unfeasible, since currently available nonlinearities are extremely weak, even though they are theoretically reasonable.…”

Section: Introductionmentioning

confidence: 99%

Universal quantum computation using all-optical hybrid encoding

et al. 2015

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By employing displacement operations, single-photon subtractions, and weak cross-Kerr nonlinearity, we propose an alternative way of implementing several universal quantum logical gates for all-optical hybrid qubits encoded in both single-photon polarization state and coherent state. Since these schemes can be straightforwardly implemented only using local operations without teleportation procedure, therefore, less physical resources and simpler operations are required than the existing schemes. With the help of displacement operations, a large phase shift of the coherent state can be obtained via currently available tiny cross-Kerr nonlinearity. Thus, all of these schemes are nearly deterministic and feasible under current technology conditions, which makes them suitable for large-scale quantum computing.

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Section: Introductionmentioning

confidence: 99%

Universal quantum computation using all-optical hybrid encoding

et al. 2015

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“…Many schemes for devising two-qubit gates via weak cross-Kerr nonlinearity have been presented. [16][17][18][19] However, universal computation, even a multi-qubit gate, may need many CNOT gates, which makes the structure too complex to be realized in practice. Thus, it is necessary to study the direct realization of multi-qubit gates with simpler structures.…”

Section: Introductionmentioning

confidence: 99%