Articles written in Pramana – Journal of Physics
Volume 96 All articles Published: 27 September 2022 Article ID 0190 Research Article
A study of topological characterisation and symmetries for a quantum-simulated Kitaev chain
Y R KARTIK RANJITH R KUMAR S RAHUL SUJIT SARKAR
An attempt is made to quantum simulate the topological characterisations, such as winding number, geometric phase and symmetry properties for a quantum-simulated Kitaev chain. We find that α (ratio between the spin–orbit coupling and magnetic field) and the range of momentum space of consideration, play crucial roles in topological classification. We show explicitly that, for this quantum-simulated Kitaev chain, the topological quantum phase transition occurs for finite range of momentum. We observe that the quasiparticle mass of thefermion plays a significant role in topological quantum phase transition. We also show that the symmetry properties of the simulated Kitaev chain is the same as that of the original Kitaev chain. The exact solution of the simulated Kitaev chain is given. This work provides a new perspective on new emerging quantum simulator and also for the topological state of matter.
Volume 97, 2023
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