A Note of Coherence for Duality Quantum Computers Acting on Pure States

作者：Zhang, Qiangqiang; Chen, Zhengli^*; Yuan, Fengru; Wang, Wenhua

来源：International Journal of Theoretical Physics, 2018, 57(12): 3795-3807.

DOI：10.1007/s10773-018-3892-2

• Duality quantum computer
• Quantum coherence
• Unitary channel
• Quantum operation
• 81P45
• 47A47
• 47N50

In this paper, we discuss the coherence for duality quantum computers under taking different unitary operators acting on pure states. Firstly, for arbitrary unitary operators, we give some general quantitative results of the coherence of output states. Secondly, for incoherence unitary operators, we obtain that the coherence of output states satisfies an inequality. In addition, we also give a conclusion of the coherence of output states under unitary permutation operators.

• 出版日期2018-12
• 单位陕西师范大学