Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits

Abstract Majorana-zero-modes (MZMs) were predicted to exist as edge states of a physical system called the Kitaev chain. MZMs should host particles that are their own antiparticles and could be used as a basis for a qubit which is robust-to-noise. However, all attempts to prove their existence gave...

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Main Author: Marko J. Rančić
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-24341-z
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author Marko J. Rančić
author_facet Marko J. Rančić
author_sort Marko J. Rančić
collection DOAJ
description Abstract Majorana-zero-modes (MZMs) were predicted to exist as edge states of a physical system called the Kitaev chain. MZMs should host particles that are their own antiparticles and could be used as a basis for a qubit which is robust-to-noise. However, all attempts to prove their existence gave inconclusive results. Here, the Kitaev chain is exactly solved with a quantum computing methodology and properties of MZMs are probed by generating eigenstates of the Kitev Hamiltonian on 3 noisy qubits of a publicly available quantum computer. After an ontological elaboration I show that two eigenstates of the Kitaev Hamiltonian exhibit eight signatures attributed to MZMs. The results presented here are a most comprehensive set of validations of MZMs ever conducted in an actual physical system. Furthermore, the findings of this manuscript are easily reproducible for any user of publicly available quantum computers, solving another important problem of research with MZMs—the result reproducibility crisis.
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spelling doaj.art-6d04c93b3cf845678ab615863d6282462022-12-22T03:43:05ZengNature PortfolioScientific Reports2045-23222022-11-011211810.1038/s41598-022-24341-zExactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubitsMarko J. Rančić0TotalEnergies, Tour Coupole La DéfenseAbstract Majorana-zero-modes (MZMs) were predicted to exist as edge states of a physical system called the Kitaev chain. MZMs should host particles that are their own antiparticles and could be used as a basis for a qubit which is robust-to-noise. However, all attempts to prove their existence gave inconclusive results. Here, the Kitaev chain is exactly solved with a quantum computing methodology and properties of MZMs are probed by generating eigenstates of the Kitev Hamiltonian on 3 noisy qubits of a publicly available quantum computer. After an ontological elaboration I show that two eigenstates of the Kitaev Hamiltonian exhibit eight signatures attributed to MZMs. The results presented here are a most comprehensive set of validations of MZMs ever conducted in an actual physical system. Furthermore, the findings of this manuscript are easily reproducible for any user of publicly available quantum computers, solving another important problem of research with MZMs—the result reproducibility crisis.https://doi.org/10.1038/s41598-022-24341-z
spellingShingle Marko J. Rančić
Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits
Scientific Reports
title Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits
title_full Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits
title_fullStr Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits
title_full_unstemmed Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits
title_short Exactly solving the Kitaev chain and generating Majorana-zero-modes out of noisy qubits
title_sort exactly solving the kitaev chain and generating majorana zero modes out of noisy qubits
url https://doi.org/10.1038/s41598-022-24341-z
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