Experimental topological quantum computing with electric circuits

TL;DR

This paper reports the first experimental realization of topological quantum computation using electric circuits, demonstrating Majorana-like edge states, braiding, and quantum algorithms.

Contribution

It introduces a new circuit-based scheme for topological quantum computation, enabling experimental observation and manipulation of topological qubits.

Findings

Observation of Majorana-like edge states

Construction of T junctions for braiding

Implementation of Grover's search algorithm

Abstract

The key obstacle to the realization of a scalable quantum computer is overcoming environmental and control errors. Topological quantum computation has attracted great attention because it has emerged as one of the most promising approaches to solving these problems. Various theoretical schemes for building topological quantum computation have been proposed. However, experimental implementation has always been a great challenge because it has proved to be extremely difficult to create and manipulate topological qubits in real systems. Therefore, topological quantum computation has not been realized in experiments yet. Here, we report the first experimental realization of topological quantum computation with electric circuits. Based on our proposed new scheme with circuits, Majorana-like edge states are not only observed experimentally, but also T junctions are constructed for the braiding process. Furthermore, we demonstrate the feasibility of topological quantum computing through a set of one- and two-qubit unitary operations. Finally, our implementation of Grover's search algorithm demonstrates that topological quantum computation is ideally suited for such tasks.