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A probabilistic evolutionary optimization approach to compute quasiparticle braids

机译:一种概率进化优化计算方法   准粒子编织物

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摘要

Topological quantum computing is an alternative framework for avoiding thequantum decoherence problem in quantum computation. The problem of executing agate in this framework can be posed as the problem of braiding quasiparticles.Because these are not Abelian, the problem can be reduced to finding an optimalproduct of braid generators where the optimality is defined in terms of thegate approximation and the braid's length. In this paper we propose the use ofdifferent variants of estimation of distribution algorithms to deal with theproblem. Furthermore, we investigate how the regularities of the braidoptimization problem can be translated into statistical regularities by meansof the Boltzmann distribution. We show that our best algorithm is able toproduce many solutions that approximates the target gate with an accuracy inthe order of $10^{-6}$, and have lengths up to 9 times shorter than thoseexpected from braids of the same accuracy obtained with other methods.
机译:拓扑量子计算是在量子计算中避免量子退相干问题的另一种框架。在这个框架中执行玛瑙的问题可以归结为编织准粒子的问题。由于它们不是阿贝尔的,因此可以简化为寻找编织发电机的最佳乘积,其中最优的产品是根据门近似和编织物的长度来定义的。 。在本文中,我们提出使用分布算法估计的不同变体来解决该问题。此外,我们研究如何通过Boltzmann分布将辫子优化问题的规律转化为统计规律。我们证明我们最好的算法能够产生许多近似目标门的解决方案,其精度约为$ 10 ^ {-6} $,并且其长度比从其他方法获得的相同精度的辫子所预期的长度短9倍。 。

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