Does Microsoft Dream of Majorana? --- The Controversy over the Observation of the Majorana Particle in Solids ---
[Introduction] Life is really hard . So, have you ever thought that you want the great power[1] that solves every your worry? Actually, there is. That is a quantum computer. This article summarizes the recent controversy over the discovery of the Majorana particle in solids for the realization of a topological quantum computer by Microsoft Corporation. [Background] Quantum computers are currently being actively researched and developed around the world [2]. Various methods have been proposed, including superconducting [3], ion trap [4], and optical [5] methods, but no practical device has yet been created. One reason for this is that quantum computers are susceptible to noise and error correction techniques have not yet been established [6]. Advances in Quantum Computing [3]. A topological quantum computer scheme that has attracted attention as an error-tolerant quantum computer scheme is the one proposed by Kitaev [7], w...