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arXiv quant-ph/0505065quant-phcond-mat.mes-hall
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量子计算中的辫子拓扑

Braid Topologies for Quantum Computation

N. E. Bonesteel, Layla Hormozi, Georgios Zikos, Steven H. Simon

摘要:

在拓扑量子计算中,量子信息被存储在本质上不受退相干影响的状态中,并且量子门通过在两个空间维度中相互拖动类粒子激发(准粒子)来实现。由此产生的准粒子轨道定义了三维时空中的世界线,相应的量子门只依赖于由这些世界线形成的辫子的拓扑结构。我们展示了如何找到辫子,产生一个通用的一套量子门的量子比特编码使用一种特定的准粒子,这是特别有希望的实验实现。

英文摘要:

In topological quantum computation, quantum information is stored in states which are intrinsically protected from decoherence, and quantum gates are carried out by dragging particle-like excitations (quasiparticles) around one another in two space dimensions. The resulting quasiparticle trajectories define world-lines in three dimensional space-time, and the corresponding quantum gates depend only on the topology of the braids formed by these world-lines. We show how to find braids that yield a universal set of quantum gates for qubits encoded using a specific kind of quasiparticle which is particularly promising for experimental realization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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