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Related Concept Videos

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The mode is one of the commonly used measures of a central tendency. It is defined as the most frequent value in a data set.
There can be more than one mode in a data set if multiple values have the same highest frequency. For instance, suppose that the Statistics exam scores of 20 students are: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93. Here, the mode is 72, as it occurs most frequently, five times.
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Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
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Related Experiment Video

Updated: Jan 25, 2026

Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy
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Decoherence of interacting Majorana modes.

H T Ng1

  • 1Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, P. R. China.

Scientific Reports
|July 28, 2015
PubMed
Summary

We investigated how environmental noise affects Majorana modes in fermion chains. Long-range interactions can surprisingly reduce decoherence, benefiting quantum information processing.

Area of Science:

  • Condensed matter physics
  • Quantum information science

Background:

  • Majorana modes are exotic quasiparticles with potential in topological quantum computing.
  • Decoherence due to environmental interactions is a major challenge for maintaining Majorana mode stability.

Purpose of the Study:

  • To investigate the decoherence mechanisms of Majorana modes in a fermionic chain.
  • To analyze the impact of dissipative and dephasing noise on Majorana mode coherence.
  • To explore the role of long-range interactions in mitigating decoherence.

Main Methods:

  • Numerical calculation of dissipation and dephasing rates.
  • Analysis of low- and high-frequency noise regimes.
  • Study of parity-preserving and non-parity-preserving transitions.

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Related Experiment Videos

Last Updated: Jan 25, 2026

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Characterization of Anisotropic Leaky Mode Modulators for Holovideo
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Main Results:

  • Dissipative noise causes non-parity-preserving transitions, while dephasing noise induces parity-preserving transitions.
  • Decoherence rates differ significantly between interacting and non-interacting Majorana modes.
  • Long-range interactions were shown to reduce the decoherence rate in specific scenarios.

Conclusions:

  • Environmental noise introduces distinct decoherence pathways for Majorana modes.
  • Long-range interactions offer a promising strategy to enhance Majorana mode stability.
  • Findings are beneficial for advancing quantum information processing applications.