Dispersive readout of Majorana qubits
arXiv:2009.00027 · doi:10.1103/PRXQuantum.1.020313
Abstract
We analyze a readout scheme for Majorana qubits based on dispersive coupling to a resonator. We consider two variants of Majorana qubits: the Majorana transmon and the Majorana box qubit. In both cases, the qubit-resonator interaction can produce sizeable dispersive shifts in the MHz range for reasonable system parameters, allowing for submicrosecond readout with high fidelity. For Majorana transmons, the light-matter interaction used for readout manifestly conserves Majorana parity, which leads to a notion of quantum nondemolition (QND) readout that is stronger than for conventional charge qubits. In contrast, Majorana box qubits only recover an approximately QND readout mechanism in the dispersive limit where the resonator detuning is large. We also compare dispersive readout to longitudinal readout for the Majorana box qubit. We show that the latter gives faster and higher fidelity readout for reasonable parameters, while having the additional advantage of being manifestly QND, and so may prove to be a better readout mechanism for these systems.
References in corpus (55)
- Fault-tolerant quantum computation by anyons
- Non-Abelian Anyons and Topological Quantum Computation
- Superconducting proximity effect and Majorana fermions at the surface of a topological insulator
- Unpaired Majorana fermions in quantum wires
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
- Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
- Charge insensitive qubit design derived from the Cooper pair box
- Helical liquids and Majorana bound states in quantum wires
- Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
- New directions in the pursuit of Majorana fermions in solid state systems
- Observation of Majorana Fermions in Ferromagnetic Atomic Chains on a Superconductor
- A generic new platform for topological quantum computation using semiconductor heterostructures
- Search for Majorana fermions in superconductors
- Non-Abelian statistics and topological quantum information processing in 1D wire networks
- Majorana Zero Modes and Topological Quantum Computation
- Exponential Protection of Zero Modes in Majorana Islands
- 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
- Scalable Designs for Quasiparticle-Poisoning-Protected Topological Quantum Computation with Majorana Zero Modes
- Schrieffer-Wolff transformation for quantum many-body systems
- Controlling the spontaneous emission of a superconducting transmon qubit
- Milestones toward Majorana-based quantum computing
- Majorana Fermions in Semiconductor Nanowires: Fundamentals, Modeling, and Experiment
- Scaling of Majorana Zero-Bias Conductance Peaks
- A Semiconductor Nanowire-Based Superconducting Qubit
- Electron Teleportation via Majorana Bound States in a Mesoscopic Superconductor
- Realizing Rapid, High-Fidelity, Single-Shot Dispersive Readout of Superconducting Qubits
- Flux-controlled quantum computation with Majorana fermions
- Coulomb-assisted braiding of Majorana fermions in a Josephson junction array
- Measurement-Only Topological Quantum Computation
- Majorana box qubits
- Realization of microwave quantum circuits using hybrid superconducting-semiconducting nanowire Josephson elements
- Universal Quantum Computation with the nu=5/2 Fractional Quantum Hall State
- Nonlocality of Majorana Modes in Hybrid Nanowires
- Controlling non-Abelian statistics of Majorana fermions on Majorana dimer lattices
- Dispersive Readout of a Few-Electron Double Quantum Dot with Fast rf Gate-Sensors
- Fast quantum non-demolition readout from longitudinal qubit-oscillator interaction
- Gate-based single-shot readout of spins in silicon
- Circuit QED with fluxonium qubits: theory of the dispersive regime
- Measurement-Only Topological Quantum Computation via Anyonic Interferometry
- Dephasing of Majorana-based qubits
- Tunability of microwave transitions as a signature of coherent parity mixing effects in the Majorana-Transmon qubit
- Readout of Majorana Qubits
- Parity-to-charge conversion in Majorana qubit readout
- Fermion parity measurement and control in Majorana circuit quantum electrodynamics
- Readout of Majorana parity states using a quantum dot
- Time scales for Majorana manipulation using Coulomb blockade in gate-controlled superconducting nanowires
- Rapid detection of coherent tunneling in an InAs nanowire quantum dot through dispersive gate sensing
- Parity-to-charge conversion for readout of topological Majorana qubits
- Robust Majorana magic gates via measurements
- Microwave readout of Majorana qubits
- Four-Majorana qubit with charge readout: dynamics and decoherence
- Majorana Qubit Readout Using Longitudinal Qubit-Resonator Interaction
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- Minimal Kitaev-transmon qubit based on double quantum dots
- Fibonacci anyons versus Majorana fermions
- Charge noise and overdrive errors in reflectometry-based charge, spin and Majorana qubit readout
- Rapid microwave-only characterization and readout of quantum dots using multiplexed gigahertz-frequency resonators
- Demonstrating Majorana non-Abelian properties using fast adiabatic charge-transfer
- Detecting Majorana modes by readout of poisoning-induced parity flips
- Fermion-Parity-Based Computation and its Majorana-Zero-Mode Implementation
- Variable and orbital-dependent spin-orbit field orientations in a InSb double quantum dot characterized via dispersive gate sensing
- Interference and parity blockade in transport through a Majorana box
- Multi-level effects in quantum-dot based parity-to-charge conversion of Majorana box qubits
- Subgap states in semiconductor-superconductor devices for quantum technologies: Andreev qubits and minimal Majorana chains
- Unified linear response theory of quantum electronic circuits
- Implementation of single-qubit gates via parametric modulation in the Majorana transmon
- Detection of Majorana zero modes bound to Josephson vortices in planar superconductor-topological insulator-superconductor junctions
- Topological Josephson Bifurcation Amplifier: Semiclassical theory
- Preparation and readout of Majorana qubits in magnet-superconductor hybrid systems
- Erasure conversion in Majorana qubits via local quasiparticle detection
- Flux-Tunable Hybridization in a Double Quantum Dot Interferometer
- Radio-frequency characterization of a supercurrent transistor made from a carbon nanotube
- Majorana qubit readout by a point-contact detector under finite bias voltages
- Parity readout in Majorana box qubits from the dispersive to the resonant regime