Quantum State Tomography and Quantum Games  

作　　者：Ahmad Nawaz 

机构地区：[1]National Centre for Physics,Quaid-i-Azam University Campus,Islamabad,Pakistan

出　　处：《Chinese Physics Letters》2012年第3期37-40,共4页中国物理快报（英文版）

摘　　要：A technique is developed for single qubit quantum state tomography using the mathematical setup of generalized quantization scheme for games.In this technique,Alice sends an unknown pure quantum state to Bob who appends it with|0><0|and then applies the unitary operators on the appended quantum state and finds the payoffs for Alice and himself.It is shown that for a particular set of unitary operators,these payoffs are equal to Stokes parameters for an unknown quantum state.In this way an unknown quantum state can be measured and reconstructed.Strictly speaking,this technique is not a game as no strategic competitions are involved.

关 键 词：STATE QUANTUM OPERATORS 

分 类 号：O41[理学—理论物理]