We propose a potentially practical scheme for implementing an n-qubit Toffoli gate by elaborately controllingthe transport of ultracold ions through stationary laser beams.Conditioned on the uniform ionic transport ve...We propose a potentially practical scheme for implementing an n-qubit Toffoli gate by elaborately controllingthe transport of ultracold ions through stationary laser beams.Conditioned on the uniform ionic transport velocity,the n-qubit Toffoli gate can be realized with high fidelity and high successful probability under current experimentalconditions,which depends on a single resonant interaction with n trapped ions and has constant implementation timewith the increase of qubits.We show that the increase of the ion number can improve the fidelity and the successfulprobability of the Toffoli gate.展开更多
A process suitable for production on a large scale of cold light mirror for film projector is introduced. Deposition parameters required for producing TiO 2/SiO 2 optical multilayer systems by electron beam evaporatio...A process suitable for production on a large scale of cold light mirror for film projector is introduced. Deposition parameters required for producing TiO 2/SiO 2 optical multilayer systems by electron beam evaporation of TiO 2 and SiO 2 starting materials are investigated. Manufacture and techniques of cold mirror and the adhesion,stability, wear and corrosion resistance of cold mirror by this process are discussed. The result shows that cold mirror produced has good optical properties and better adhesion.展开更多
基金supported by National Natural Science Foundation of China under Grant Nos.10774163 and 10774042partly by the National Fundamental Research Program of China under Grant Nos.2005CB724502 and 2006CB921203
文摘We propose a potentially practical scheme for implementing an n-qubit Toffoli gate by elaborately controllingthe transport of ultracold ions through stationary laser beams.Conditioned on the uniform ionic transport velocity,the n-qubit Toffoli gate can be realized with high fidelity and high successful probability under current experimentalconditions,which depends on a single resonant interaction with n trapped ions and has constant implementation timewith the increase of qubits.We show that the increase of the ion number can improve the fidelity and the successfulprobability of the Toffoli gate.
文摘A process suitable for production on a large scale of cold light mirror for film projector is introduced. Deposition parameters required for producing TiO 2/SiO 2 optical multilayer systems by electron beam evaporation of TiO 2 and SiO 2 starting materials are investigated. Manufacture and techniques of cold mirror and the adhesion,stability, wear and corrosion resistance of cold mirror by this process are discussed. The result shows that cold mirror produced has good optical properties and better adhesion.
