首页|Majorana noise model and its influence on the power spectrum

Majorana noise model and its influence on the power spectrum

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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.

Majorana zero modetopological quantum computationtopological devicesdecoherence and noise in qubits

陈书梦、丁思凡、张振涛、刘东

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State Key Laboratory of Low Dimensional Quantum Physics,Department of Physics,Tsinghua University,Beijing 100084,China

School of Physics Science and Information Technology,Shandong Key Laboratory of Optical Communication Science and Technology,Liaocheng University,Liaocheng 252059,China

Beijing Academy of Quantum Information Sciences,Beijing 100193,China

Frontier Science Center for Quantum Information,Beijing 100084,China

Hefei National Laboratory,Hefei 230088,China

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Innovation Program for Quantum Science and TechnologyNational Natural Science Foundation of ChinaNatural Science Foundation of Shandong Province of China

2021ZD030240011974198ZR2021MA091

2024

10.1088/1674-1056/acfd19

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(1)
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