Topological Quantum Buses: Coherent Quantum Information Transfer between Topological and Conventional Qubits

2010/11/30 by Parsa Bonderson, Roman M. Lutchyn · 6 citations
Materials Science · Mathematics · Physics and Astronomy · #Graphene research and applications #Mathematics #Physics #Quantum #Quantum and electron transport phenomena #Quantum gate #Quantum information #Quantum mechanics #Quantum network #Quantum teleportation #Qubit #Superconducting quantum computing #Symmetry protected topological order #Topological Materials and Phenomena #Topological degeneracy #Topological insulator #Topological order #Topology (electrical circuits) #cond-mat.mes-hall #cond-mat.str-el #quant-ph

paper · pdf · doi:10.1103/physrevlett.106.130505

published as Phys. Rev. Lett. 106, 130505 (2011) · 5 pages, 2 figures; v2: minor revisions

arxiv created 2011/03/28 · openalex publication_date 2011/03/28 · arxiv updated 2013/02/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We propose computing bus devices that enable quantum information to be coherently transferred between topological and conventional qubits. We describe a concrete realization of such a topological quantum bus acting between a topological qubit in a Majorana wire network and a conventional semiconductor double quantum dot qubit. Specifically, this device measures the joint (fermion) parity of these two different qubits by using the Aharonov-Casher effect in conjunction with an ancilliary superconducting flux qubit that facilitates the measurement. Such a parity measurement, together with the ability to apply Hadamard gates to the two qubits, allows one to produce states in which the topological and conventional qubits are maximally entangled and to teleport quantum states between the topological and conventional quantum systems.

Citations

• Proposed Aharonov-Casher interference measurement of non-Abelian vortices in chiralp-wave superconductors
• Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels
• Search for Majorana Fermions in Multiband Semiconducting Nanowires
• Helical Liquids and Majorana Bound States in Quantum Wires
• Universal Quantum Computation with ideal Clifford gates and noisy ancillas
• Towards universal topological quantum computation in theν=52fractional quantum Hall state
• Theory of non-Abelian Fabry-Perot interferometry in topological insulators
• Anyonic interferometry without anyons: how a flux qubit can read out a topological qubit
• Suppression of tunneling in a superconducting persistent-current qubit
• Fault-tolerant quantum computation by anyons
• Non-Abelian anyons and topological quantum computation
• Unpaired Majorana fermions in quantum wires
• Quantum Computing

Cited by

• A Practical Phase Gate for Producing Bell Violations in Majorana Wires
• Exotic topological types of Majorana zero modes and their universal quantum manipulation
• Correlated parity measurements as a probe of non-Abelian statistics in one-dimensional superconducting wires
• Minimal circuit for a flux-controlled Majorana qubit in a quantum spin-Hall insulator
• Strong coupling between a topological qubit and a nanomechanical resonator
• Majorana fermions in semiconductor nanowires