Abstract
Majorana quantum computation offers a potential approach to securely manipulating and storing quantum data in a topological manner that may effectively resist the decoherence induced by local noise.However,actual Majorana qubit setups are susceptible to noise.In this study,from a quantum dynamics perspective,we develop a noise model for Majo-rana qubits that accounts for quasi-particle poisoning and Majorana overlapping with fluctuation.Furthermore,we focus on Majorana parity readout methodologies,specifically those leveraging an ancillary quantum dot,and carry out an in-depth exploration of continuous measurement techniques founded on the quantum jump model of a quantum point contact.Utilizing these methodologies,we proceed to analyze the influence of noise on the afore-mentioned noise model,employ-ing numerical computation to evaluate the power spectrum and frequency curve.In the culmination of our study,we put forward a strategy to benchmark the presence and detailed properties of noise in Majorana qubits.
基金项目
Innovation Program for Quantum Science and Technology(2021ZD0302400)
National Natural Science Foundation of China(11974198)
Natural Science Foundation of Shandong Province of China(ZR2021MA091)
维普
万方数据