Weak cross-Kerr media provides additional degrees of freedom of qubits in quantum information processing.In this paper,by exploiting weak cross-Kerr nonlinearity,we propose an optical implementation scheme of one-dime...Weak cross-Kerr media provides additional degrees of freedom of qubits in quantum information processing.In this paper,by exploiting weak cross-Kerr nonlinearity,we propose an optical implementation scheme of one-dimensional quantum random walks. The random walks are described by the interaction of single photons with cross-Kerr media.The proposed scheme can also be used to implement one-dimensional quantum random walks on an infinite line.展开更多
基金supported by National Natural Science Foundation of China(10704001,61073048)the Key Project of Chinese Ministry of Education(210092)the Key Program of the Education Department of Anhui Province (KJ2009B179Z,2009SQRZ196,KJ2008A28ZC,KJ2009A048Z,2010SQRL153ZD,and KJ2010A287)
基金supported by the National Basic Research Program of China (2010CB923202)the Specialized Research Fund for Doctoral Programs of the Ministry of Education of China(20090005120008)+1 种基金the Fundamental Research Funds for the Central Universities(BUPT2009RC0710)the National Natural Science Foundation of China(10805010,10947151)
文摘Weak cross-Kerr media provides additional degrees of freedom of qubits in quantum information processing.In this paper,by exploiting weak cross-Kerr nonlinearity,we propose an optical implementation scheme of one-dimensional quantum random walks. The random walks are described by the interaction of single photons with cross-Kerr media.The proposed scheme can also be used to implement one-dimensional quantum random walks on an infinite line.
