We present a very simple scheme for generating four-qubit cluster states with one step using paritymeasurement based on dipole-induced transparency in a cavity-waveguide system.The scheme only uses the photondetectors...We present a very simple scheme for generating four-qubit cluster states with one step using paritymeasurement based on dipole-induced transparency in a cavity-waveguide system.The scheme only uses the photondetectors to check the parity of the spatially separated dipole,which are the same (even parity) or different (odd parity)through measuring the light fields in the waveguide.The initial entangled states remain after nondetective identificationand they can be used for successive tasks.展开更多
基金National Natural Science Foundation of China under Grant No.10574001the Program of the Education Department of Anhui Province under Grant No.2004kj029the Talent Foundation of Anhui University
文摘We present a very simple scheme for generating four-qubit cluster states with one step using paritymeasurement based on dipole-induced transparency in a cavity-waveguide system.The scheme only uses the photondetectors to check the parity of the spatially separated dipole,which are the same (even parity) or different (odd parity)through measuring the light fields in the waveguide.The initial entangled states remain after nondetective identificationand they can be used for successive tasks.
