aqora

Physical Realization of Quantum C-Not Gate

霍建立, Shun-Jin Wang, 陶军

我们调查海森堡旋转簇，二个粒子由一个时间依赖者磁场控制了。系统被调节三步的时间依赖者磁场的振幅，频率，和相互作用时间控制。然后，我们解决二粒子的系统的时间依赖者 Schrodinger 方程，并且获得时间进化操作符。由 three-timestep 相互作用，波浪功能从起始的状态演变到最后的状态，和全部的进化操作员能被表示为三个进化操作员的一个产品。由调整物理参数，关键 two-qubit 逻辑门， C 不门，能身体上被认识到。我们调查海森堡旋转簇，二个粒子由一个时间依赖者磁场控制了。系统被调节三步的时间依赖者磁场的振幅，频率，和相互作用时间控制。然后，我们解决二粒子的系统的时间依赖者 Schrodinger 方程，并且获得时间进化操作符。由 three-timestep 相互作用，波浪功能从起始的状态演变到最后的状态，和全部的进化操作员能被表示为三个进化操作员的一个产品。由调整物理参数，关键 two-qubit 逻辑门， C 不门，能身体上被认识到。

Chinese Physics LettersJan 1, 20080 citations

Single Qubit and Its Universal Logic Gate Made of a Heisenberg Spin Cluster with Five Particles

Jun Tao, Shun-Jin Wang

We investigate an anisotropic Heisenberg spin cluster with five particles controlled by a time-dependent magnetic field. With the algebraic dynamical method, we obtain the exact analytical solution to the time dependent Schrödinger equation. Based on the analytical solution, it is shown that the system can be used as a universal single qubit logic gate controlled by the strength and frequency of the magnetic field, and the six special single qubit logic gates can be realized physically. We also discuss the anti-decoherence property of the qubit and its logic gates resulted from particle coupling effect and collectivity of the cluster.We investigate an anisotropic Heisenberg spin cluster with five particles controlled by a time-dependent magnetic field. With the algebraic dynamical method, we obtain the exact analytical solution to the time dependent Schrödinger equation. Based on the analytical solution, it is shown that the system can be used as a universal single qubit logic gate controlled by the strength and frequency of the magnetic field, and the six special single qubit logic gates can be realized physically. We also discuss the anti-decoherence property of the qubit and its logic gates resulted from particle coupling effect and collectivity of the cluster.

Chinese Physics LettersNov 29, 20061 citation

Quantum Gates on One Qubit

Bettina Just

Springer eBooksJan 1, 20224 citations

Single qubit and its universal logic gate made of an annular spin cluster with anisotropic Heisenberg-chain

Xiao-Bo Yan, Shun-Jin Wang, (1)四川大学物理系,成都 610064; (2)四川大学物理系,成都 610064;兰州重离子加速器国家实验室,兰州 730000

We investigate an annular spin cluster made of three particles with anisotropic Heisenberg-chain controlled by a time-dependent magnetic field. The system has an SU(2) algebraic structure. Using algebraic dynamical method, we have obtained the exact analytical solution to the time dependent Schrdinger equation. Based on the analytical solution, it is shown that the system can be used as a universal single qubit logic gate controlled by the strength and frequency of the magnetic field, and consequently six special single qubit logic gates can be realized.We investigate an annular spin cluster made of three particles with anisotropic Heisenberg-chain controlled by a time-dependent magnetic field. The system has an SU(2) algebraic structure. Using algebraic dynamical method, we have obtained the exact analytical solution to the time dependent Schrdinger equation. Based on the analytical solution, it is shown that the system can be used as a universal single qubit logic gate controlled by the strength and frequency of the magnetic field, and consequently six special single qubit logic gates can be realized.

Acta Physica SinicaJan 1, 200611 citations

Two and Three Qubit Quantum Logic Gates

WORLD SCIENTIFIC eBooksJul 1, 19980 citations

円筒対称Heisenbergスピン結合をもつ2量子状態(QUBIT)の最大尤度ブラインド分離

Yannick Deville, Alain Deville

IEEE International Conference on Acoustics Speech and Signal ProcessingJan 1, 20080 citations

Single Qubit and Its Universal Logic Gate Made of a Heisenberg Spin Cluster with Five Particles

Abstract

Related papers

Single Qubit and Its Universal Logic Gate Made of a Heisenberg Spin Cluster with Five Particles

Abstract

Related papers