Can Topological Protection Extend the Lifetime of a Qubit?

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Discussion Overview

The discussion revolves around the potential methods to prolong the lifetime of qubits, specifically exploring the concept of topological protection alongside other strategies such as isolation from the environment. The scope includes theoretical and conceptual aspects of qubit longevity in quantum computing.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • Some participants suggest that besides error correction, isolation from the environment and topological protection are viable methods to extend qubit lifetime.
  • One participant notes that the effectiveness of these methods may depend on the specific type of qubit, indicating a distinction between photonic qubits and superconducting transmons.
  • There is a mention of topological protection being a significant topic of interest within the condensed-matter-physics community, particularly among major companies like Google and IBM.
  • Participants seek clarification on the concept of topological protection, indicating a need for further explanation of its implications in qubit longevity.
  • One participant provides a brief description of topological concepts, suggesting that topology relates to global properties while geometry pertains to local properties.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and interest in topological protection, with some seeking clarification. There is no consensus on the effectiveness or application of topological protection compared to other methods.

Contextual Notes

The discussion highlights the dependence on the type of qubit being used, which may influence the applicability of proposed methods for extending qubit lifetime. Specific assumptions about the nature of topological protection and its practical implementation remain unresolved.

Emrissa
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Hi everyone,
Besides error correction, what other aspects can we do to prolong a qubit's lifetime?
 
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Isolation from environment, topological protection, ...
 
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The latter seems to be a very hot topic in the condensed-matter-physics community and at Google as well as IBM as competitors :-).
 
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In practice, it very much depends on the type of qubit you are using; a photonic qubit is very different from a superconducting transmon.
I think you need to be more specific,
 
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Demystifier said:
Isolation from environment, topological protection, ...
Hi...
What do you mean by topological protection?
 
Collapsing/ Moding/Quotienting out Braids into Knots. Topology gives, describes global properties, while geometry is local, if I may be overly vague.
 

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