Physical Realization of Quantum C-Not Gate

HUO Jian-Li; WANG Shun-Jin; TAO Jun

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Physical Realization of Quantum C-Not Gate

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@@ We investigate a Heisenberg spin cluster with two particles controlled by a time-dependent magnetic field.The system is controlled by tuning the amplitude,frequency,and interaction time of the three-step time-dependent magnetic field.Then we solve the time-dependent Schr(o)dinger equation of the two-particle system,and obtain the time evolution operator.By the three-timestep interaction,the wavefunction evolves from the initial state to the final state,and the total evolution operator can be expressed as a product of the three evolution operators.By adjusting the physical parameters,the key two-qubjt logic gate,the C-Not gate,can be realized physically.

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《中国物理快报：英文版》 |2008年第3期|813-816|共4页
作者
HUO Jian-Li; WANG Shun-Jin; TAO Jun;
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Center of Theoretical Physics,School of Physics and Technology,Sichuan University,Chengdu 610064;

Center of Theoretical Physics,School of Physics and Technology,Sichuan University,Chengdu 610064;

Center of Theoretical Physics,School of Physics and Technology,Sichuan University,Chengdu 610064;

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正文语种 chi
中图分类物理学;
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Physical Realization of Quantum C-Not Gate

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