Measurement-Based Entanglement of Semiconductor Spin Qubits

Measurement-Based Entanglement of Semiconductor Spin Qubits

Measurement-based entanglement is a method for entangling quantum systems through the state projection that accompanies a parity measurement. We derive a stochastic master equation describing measurement-based entanglement of a pair of silicon double-dot flopping-mode spin qubits, develop numerical...

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Veröffentlicht in:arXiv.org 2023-12
Hauptverfasser: Delva, Remy L, Mielke, Jonas, Burkard, Guido, Petta, Jason R
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Mathematical models
Physics - Mesoscale and Nanoscale Physics
Physics - Quantum Physics
Quantum entanglement
Qubits (quantum computing)
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Mielke, Jonas
Burkard, Guido
Petta, Jason R
description Measurement-based entanglement is a method for entangling quantum systems through the state projection that accompanies a parity measurement. We derive a stochastic master equation describing measurement-based entanglement of a pair of silicon double-dot flopping-mode spin qubits, develop numerical simulations to model this process, and explore what modifications could enable an experimental implementation of such a protocol. With device parameters corresponding to current qubit and cavity designs, we predict an entanglement fidelity \(F_e \approx\) 61%. By increasing the cavity outcoupling rate by a factor of ten, we are able to obtain a simulated \(F_e \approx\) 81% while maintaining a yield of 33%.
doi_str_mv 10.48550/arxiv.2312.15493
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subjects Mathematical models
Physics - Mesoscale and Nanoscale Physics
Physics - Quantum Physics
Quantum entanglement
Qubits (quantum computing)
title Measurement-Based Entanglement of Semiconductor Spin Qubits
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