A silicon-based nuclear spin quantum computer
A silicon-based nuclear spin quantum computer
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作者：
Kane, BE
量子计算机有望超过普通经典机器的计算效率，因为量子算法允许以更少的步骤执行某些任务。但这些机器的实际应用带来了巨大的挑战。在这里，我提出了一个实现量子力学计算机的方案。在掺杂硅电子器件中，信息被编码到施主原子的核自旋上。使用外部施加的电场对单个自旋进行逻辑运算，并使用自旋极化电子的电流进行自旋测量。这种计算机的实现取决于传统硅电子学的未来改进。
Quantum computers promise to exceed the computational efficiency of ordinary classical machines because quantum algorithms allow the execution of certain tasks in fewer steps. But practical implementation of these machines poses a formidable challenge. Here I present a scheme for implementing a quantum-mechanical computer. Information is encoded onto the nuclear spins of donor atoms In doped silicon electronic devices. Logical operations on individual spins are performed using externally applied electric fields, and spin measurements are made using currents of spin-polarized electrons. The realization of such a computer is dependent on future refinements of conventional silicon electronics.