aqora

Nonlocal d-dimensional Controlled-NOT with Multi-target Gate: AControlled and Local Implementation

Libing Chen, Yihong Bai, Haiping Lu

Journal of the Korean Physical SocietyMar 14, 20111 citation

Implementation of Nonlocal Controlled-NOT Gate via a Cavity Input-Output Process

Xiaohui Ma, Shou Zhang, Hong‐Fu Wang +1 more

Journal of the Korean Physical SocietyDec 15, 20080 citations

Controlled implementation of a nonlocal and open-target destination quantum controlled-Not （CNOT） gate using partially entangled pairs

Libing Chen, Tan Peng, Dong Shao-Guang +2 more

We show how a nonlocal and open-target destination quantum controlled-Not （CNOT） gate can be probabilistically implemented by using partially entangled pairs of particles. We first investigate the controlled implementation of a nonlocal and three-target destination CNOT gate using three partially entangled pairs, and then generalize the scheme to the case of N-target destination. In this scheme, Alice’s local generalized measurement described by a positive operator valued measurement （POVM） plays a key role. We construct the required POVM. It is worth noting that deterministic and exact implementation of a nonlocal CNOT gate can be realized using partially entangled pairs.We show how a nonlocal and open-target destination quantum controlled-Not （CNOT） gate can be probabilistically implemented by using partially entangled pairs of particles. We first investigate the controlled implementation of a nonlocal and three-target destination CNOT gate using three partially entangled pairs, and then generalize the scheme to the case of N-target destination. In this scheme, Alice’s local generalized measurement described by a positive operator valued measurement （POVM） plays a key role. We construct the required POVM. It is worth noting that deterministic and exact implementation of a nonlocal CNOT gate can be realized using partially entangled pairs.

Acta Physica SinicaJan 1, 20091 citation

Remote interactions between two d -dimensional distributed quantum systems: nonlocal generalized quantum control-NOT gate and entanglement swapping

Libing Chen, Haiping Lu, Jin Rui-Bo

We present a systematic simple method to implement a generalized quantum control-NOT (CNOT) gate on two d -dimensional distributed systems. First, we show how the nonlocal generalized quantum CNOT gate can be implemented with unity fidelity and unity probability by using a maximally entangled pair of qudits as a quantum channel. We also put forward a scheme for probabilistically implementing the nonlocal operation with unity fidelity by employing a partially entangled qudit pair as a quantum channel. Analysis of the scheme indicates that the use of partially entangled quantum channel for implementing the nonlocal generalized quantum CNOT gate leads to the problem of 'the general optimal information extraction'. We also point out that the nonlocal generalized quantum CNOT gate can be used in the entanglement swapping between particles belonging to distant users in a communication network and distributed quantum computer.We present a systematic simple method to implement a generalized quantum control-NOT (CNOT) gate on two d -dimensional distributed systems. First, we show how the nonlocal generalized quantum CNOT gate can be implemented with unity fidelity and unity probability by using a maximally entangled pair of qudits as a quantum channel. We also put forward a scheme for probabilistically implementing the nonlocal operation with unity fidelity by employing a partially entangled qudit pair as a quantum channel. Analysis of the scheme indicates that the use of partially entangled quantum channel for implementing the nonlocal generalized quantum CNOT gate leads to the problem of 'the general optimal information extraction'. We also point out that the nonlocal generalized quantum CNOT gate can be used in the entanglement swapping between particles belonging to distant users in a communication network and distributed quantum computer.

Chinese PhysicsNov 1, 20074 citations

Efficient implementation of a nonlocal gate with nonmaximal entanglement

Chunmei Yao, Binfang Cao

Physics Letters AJan 27, 200910 citations

On nonlocal quantum gates

Shu-Dong Fang

The nonlocal quantum gate is discussed. We also propose a scheme for probabilistic implementation of nonlocal controlled-not operation via a nonmaximally entangled quantum channel.

Chinese Journal of Quantum ElectronicsJan 1, 20050 citations

One-Way Flagged Probabilistic Implementation of a Nonlocal Controlled-NOT Gate

Related papers

One-Way Flagged Probabilistic Implementation of a Nonlocal Controlled-NOT Gate

Related papers