SciPost Submission Page
Pareto-optimality of Majoranas in hybrid platforms
by Juan Daniel Torres Luna, Sebastian Miles, Ahmet Mert Bozkurt, Chun-Xiao Liu, Antonio Manesco, Anton R. Akhmerov, Michael Wimmer
Submission summary
| Authors (as registered SciPost users): | Juan Daniel Torres Luna |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2510.07406v1 (pdf) |
| Code repository: | https://zenodo.org/records/16779124 |
| Data repository: | https://zenodo.org/records/16779124 |
| Date submitted: | Nov. 26, 2025, 4:14 p.m. |
| Submitted by: | Juan Daniel Torres Luna |
| Submitted to: | SciPost Physics |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Computational |
The author(s) disclose that the following generative AI tools have been used in the preparation of this submission:
We have used Github copilot chat with Claude 4.5 and GPT-4 language models to perform the following: generate code and text typing suggestions, generate and modify code based on a sequence of prompts, generate critical evaluation of text and language quality. We have reviewed and rewritten the AI-generated code; AI did not generate text except for typing suggestions.
Abstract
To observe Majorana bound states, and especially to use them as a qubit, requires careful optimization of competing quality metrics. We systematically compare Majorana quality in proximitized semiconductor nanowires and quantum dot chains. Using multi-objective optimization, we analyze the fundamental trade-offs between topological gap and localization length, two key metrics that determine MBS coherence and operational fidelity. We demonstrate that these quantities cannot be simultaneously optimized in realistic models, creating Pareto frontiers that define the achievable parameter space. Our results show that QD chains achieve both comparable quality as nanowires and a regime with a much shorter localization length, making them particularly promising for near-term quantum computing applications where device length and disorder are limiting factors.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block