A study of topological characterization and symmetries for a quantum simulated Kitaev chain

TL;DR

This paper explores the topological properties and symmetries of a quantum simulated Kitaev chain, highlighting the roles of spin-orbit coupling, momentum range, and Majorana quasi-particle mass in topological phase transitions.

Contribution

It provides an explicit analysis of topological classification, symmetry properties, and exact solutions for a quantum simulated Kitaev chain, offering new insights into quantum simulation of topological matter.

Findings

Topological quantum phase transition does not occur at k=0.

Symmetry properties match those of the original Kitaev chain.

The quasi-particle mass influences the topological phase transition.

Abstract

An attempt is made to quantum simulate the topological classification, such as winding number, geometric phase and symmetry properties for a quantum simulated Kitaev chain. We find, {\alpha} (ratio between the spin-orbit coupling and magnetic field) and the range of momentum space of consideration, which plays a crucial role for the topological classification. We show explicitly that the topological quantum phase transition does not occurs at k = 0 limit for the quantum simulated Kitaev chain. We observe that the quasi-particle mass of the Majorana mode plays the significant role in topological quantum phase transition. We also show that the symmetry properties of simulated Kitaev chain is the same with original Kitaev chain. The exact solution of simulated Kitaev chain is given. This work provides a new perspective on new emerging quantum simulator and also for the topological state of matter.