Interference and parity blockade in transport through a Majorana box
arXiv:2205.10002 · doi:10.1103/PhysRevB.106.L201305
Abstract
A Majorana box - two topological superconducting nanowires coupled via a trivial superconductor - is a building block in devices aiming to demonstrate nonabelian physics, as well as for topological quantum computer architectures. We theoretically investigate charge transport through a Majorana box and show that current can be blocked when two Majoranas couple to the same lead, fixing their parity. In direct analogy to Pauli spin blockade in spin qubits, this parity blockade can be used for fast and high-fidelity qubit initialization and readout, as well as for current-based measurements of decoherence times. Furthermore, we demonstrate that transport can distinguish between a clean Majorana box and a disordered box with additional unwanted Majorana or Andreev bound states.
arXiv comment4 pages, 3 figures + 6 pages supplementary
References in corpus (54)
- Non-Abelian Anyons and Topological Quantum Computation
- Unpaired Majorana fermions in quantum wires
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
- Helical liquids and Majorana bound states in quantum wires
- New directions in the pursuit of Majorana fermions in solid state systems
- Spins in few-electron quantum dots
- Observation of Majorana Fermions in a Nb-InSb Nanowire-Nb Hybrid Quantum Device
- Majorana bound states in a coupled quantum-dot hybrid-nanowire system
- Realizing Majorana zero modes in superconductor-semiconductor heterostructures
- Introduction to topological superconductivity and Majorana fermions
- Anomalous modulation of a zero bias peak in a hybrid nanowire-superconductor device
- A short introduction to the Lindblad Master Equation
- Scalable Designs for Quasiparticle-Poisoning-Protected Topological Quantum Computation with Majorana Zero Modes
- From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
- Scaling of Majorana Zero-Bias Conductance Peaks
- Electron Teleportation via Majorana Bound States in a Mesoscopic Superconductor
- Near-zero-energy end states in topologically trivial spin-orbit coupled superconducting nanowires with a smooth confinement
- Transport spectroscopy of NS nanowire junctions with Majorana fermions
- Measurement-Only Topological Quantum Computation
- Majorana box qubits
- Reproducing topological properties with quasi-Majorana states
- Physical mechanisms for zero-bias conductance peaks in Majorana nanowires
- Universal Lindblad equation for open quantum systems
- Topological Kondo effect with Majorana fermions
- Kinetic Equations for Transport Through Single-Molecule Transistors
- Majorana fermions in superconducting nanowires without spin-orbit coupling
- Quantized zero bias conductance plateau in semiconductor-superconductor heterostructures without non-Abelian Majorana zero modes
- Zero-energy Andreev bound states from quantum dots in proximitized Rashba nanowires
- A perturbative nonequilibrium renormalization group method for dissipative quantum mechanics: Real-time RG in frequency space (RTRG-FS)
- Towards realistic implementations of a Majorana surface code
- Cotunneling at resonance for the single-electron transistor
- Roadmap to Majorana surface codes
- Supercurrent detection of topologically trivial zero-energy states in nanowire junctions
- Search for non-Abelian Majorana braiding statistics in superconductors
- Pauli Spin Blockade in the Presence of Strong Spin-Orbit Coupling
- Majorana Fermion Surface Code for Universal Quantum Computation
- Multi-Terminal Coulomb-Majorana Junction
- Majorana-Klein hybridization in topological superconductor junctions
- Thermodynamics of Quantum Information Flows
- A phenomenological position and energy resolving Lindblad approach to quantum kinetics
- Local and non-local quantum transport due to Andreev bound states in finite Rashba nanowires with superconducting and normal sections
- Readout of Majorana Qubits
- Conductance fingerprint of Majorana fermions in the topological Kondo effect
- Parity-to-charge conversion in Majorana qubit readout
- Non-Fermi liquid manifold in a Majorana device
- QmeQ 1.0: An open-source Python package for calculations of transport through quantum dot devices
- Dispersive readout of Majorana qubits
- Many-terminal Majorana island: from Topological to Multi-Channel Kondo Model
- Electron Teleportation in Multi-Terminal Majorana Islands: Statistical Transmutation and Fractional Quantum Conductance
- Gauge Theories with Ultracold Atoms
- Signatures of topological ground state degeneracy in Majorana islands
- Quantum transport in coupled Majorana box systems
- Multi-level effects in quantum-dot based parity-to-charge conversion of Majorana box qubits
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- Subgap states in semiconductor-superconductor devices for quantum technologies: Andreev qubits and minimal Majorana chains
- Controlling Majorana hybridization in magnetic chain-superconductor systems
- Transport-based fusion that distinguishes between Majorana and Andreev bound states