Concatenated deleting machines and their characteristics  

作　　者：A Nancy S Balakrishnan 

机构地区：[1]Department of Physics,School of Advanced Sciences,Vellore Institute of Technology,Vellore 632014,Tamil Nadu,India

出　　处：《Communications in Theoretical Physics》2023年第3期48-55,共8页理论物理通讯（英文版）

摘　　要：In this work,we study the performance of one shot and concatenated deleting machines(DMs).We show that the output state of one shot DMs are mixed inseparable,and do not violate Bell's inequality but can be used as a teleportation channel for all values of the input state parameters.On the other hand,we observe in the concatenation of different DMs that the output states are mixed inseparable and do not violate Bell's inequality,and cannot be used as a teleportation channel.Further,some important attributes such as inseparability,violation of Bell's inequality,and teleportation fidelity of the DMs remain unchanged under the order of concatenation.In this context of a teleportation channel,one shot DMs are useful when compared to concatenated DMs.

关 键 词：Pati-Braunstein deleting machine concatenated deleting machine teleportation fidelity Bell's inequality 

分 类 号：O413[理学—理论物理] TP38[理学—物理]