Phase-controlled minimal Kitaev chain in multiterminal Josephson junctions
arXiv:2501.14597 · doi:10.1103/PhysRevB.111.195433
Abstract
We propose a nanodevice based on multi-terminal Josephson junctions for the creation and detection of poor man's Majorana (PMM) modes. The device consists of a double three-terminal Josephson junction (3TJJ) embedded in a planar semiconductor that engineers a two-site Kitaev chain. We identify the conditions necessary for the emergence of PMM modes by precisely tuning the superconducting phases of the terminals and the inter-junction coupling between the 3TJJs. To validate our findings, we perform numerical simulations that account for disorder in a more general geometry and test experimentally feasible protocols based on conductance measurements to reliably detect these modes. Unlike traditional approaches that rely on magnetic fields, our design eliminates the need for such fields, potentially increasing the energy-level resolution and significantly expanding the range of compatible semiconductor materials, such as Ge-based heterostructures.
19 pages, 9 figures. Final version
References in corpus (47)
- Unpaired Majorana fermions in quantum wires
- Helical liquids and Majorana bound states in quantum wires
- New directions in the pursuit of Majorana fermions in solid state systems
- A generic new platform for topological quantum computation using semiconductor heterostructures
- Realizing Majorana zero modes in superconductor-semiconductor heterostructures
- Epitaxy of Semiconductor-Superconductor nanowires
- From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
- The germanium quantum information route
- Realization of a minimal Kitaev chain in coupled quantum dots
- How to realize a robust practical Majorana chain in a quantum dot-superconductor linear array
- Multi-terminal Josephson junctions as topological materials
- Parity qubits and poor man's Majorana bound states in double quantum dots
- Composite Majorana Fermion Wavefunctions in Nanowires
- Flux-induced topological superconductivity in full-shell nanowires
- Flux-induced Majorana modes in full-shell nanowires
- Topological superconductivity in full shell proximitized nanowires
- Adaptive tuning of Majorana fermions in a quantum dot chain
- Single fermion manipulation via superconducting phase differences in multiterminal Josephson junctions
- Majorana nanowires for topological quantum computation
- Strong and Tunable Spin-Orbit Coupling of One-Dimensional Holes in Ge/Si Core/Shell Nanowires
- A two-site Kitaev chain in a two-dimensional electron gas
- Epitaxial Pb on InAs nanowires
- Roadmap towards Majorana qubits and nonabelian physics in quantum dot-based minimal Kitaev chains
- Light effective hole mass in undoped Ge/SiGe quantum wells
- Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states
- Hard superconducting gap in germanium
- Antilocalization of Coulomb Blockade in a Ge-Si Nanowire
- Splitting of Andreev levels in a Josephson junction by spin-orbit coupling
- Phase-engineering the Andreev band structure of a three-terminal Josephson junction
- Signatures of Majorana protection in a three-site Kitaev chain
- Phase-induced topological superconductivity in a planar heterostructure
- Giant g factor tuning of long-lived electron spins in Ge
- Minimal quantum dot based Kitaev chain with only local superconducting proximity effect
- MBE Growth of Al/InAs and Nb/InAs Superconducting Hybrid Nanowire Structures
- Even-odd effect and Majorana states in full-shell nanowires
- Hole spin qubits in thin curved quantum wells
- Three-phase Majorana zero modes at tiny magnetic fields
- One-dimensional topological superconductivity based entirely on phase control
- Kitaev chain in an alternating quantum dot-Andreev bound state array
- Majorana bound states in germanium Josephson junctions via phase control
- Phenomenology of Majorana zero modes in full-shell hybrid nanowires
- Fate of poor man's Majoranas in the long Kitaev chain limit
- Spin-degeneracy breaking and parity transitions in three-terminal Josephson junctions
- Majorana modes in quantum dots coupled via a floating superconducting island
- InP/GaSb core-shell nanowires: a novel hole-based platform with strong spin-orbit coupling for full-shell hybrid devices
- Solid-State Reactions at Niobium-Germanium Interfaces in Hybrid Superconductor-Semiconductor Devices
- Phase-controlled minimal Kitaev chain in multiterminal Josephson junctions