Mobile spin qubits in silicon can leapfrog over occupied dots by exploiting low valley splitting, enabling new connectivity routes and SWAP^γ entangling gates.
arXiv:2601.23267
7 Pith papers cite this work. Polarity classification is still indexing.
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Conveyor-mode electron shuttling enables high-fidelity single-qubit rotations via EDSR and tunable two-qubit interactions via diabatic gates in semiconductor spin qubits.
CAbLECAR provides a robotics-inspired shuttle scheduler that enables QLDPC codes on tileable spin-qubit hardware, yielding up to 86% faster schedules and orders-of-magnitude gains in encoding efficiency and logical error rates over surface codes.
A Tukey-window-based smooth velocity shuttling protocol reduces valley excitations and average spin infidelity in disordered Si/SiGe quantum dots via analytical design and statistical simulations.
DFT simulations recommend 3-4 nm Si wells with 50 ppm 73Ge and 29Si for valley splittings above 500 μeV and T2* above 15 μs in 700 nm² dots, with sharper interfaces helping both metrics.
Experimental demonstration of universal controllability, parallel readout, and certified three-qubit GHZ entanglement with extended lifetime in a two-unit-cell SiMOS quantum processor.
A driven mediator quantum dot enables rapid single-pulse universal entangling gates between resonant exchange qubits via capacitive coupling, avoiding complex leakage-mitigation sequences.
citing papers explorer
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Spin Qubit Leapfrogging: Dynamics of shuttling electrons on top of another
Mobile spin qubits in silicon can leapfrog over occupied dots by exploiting low valley splitting, enabling new connectivity routes and SWAP^γ entangling gates.
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Spin qubit operations by conveyor-mode shuttling
Conveyor-mode electron shuttling enables high-fidelity single-qubit rotations via EDSR and tunable two-qubit interactions via diabatic gates in semiconductor spin qubits.
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CAbLECAR: efficiently scheduling QLDPC codes on a tileable spin qubit chip with shuttling
CAbLECAR provides a robotics-inspired shuttle scheduler that enables QLDPC codes on tileable spin-qubit hardware, yielding up to 86% faster schedules and orders-of-magnitude gains in encoding efficiency and logical error rates over surface codes.
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Smooth velocity shuttling for suppressing valley excitations in disordered Si/SiGe quantum dots
A Tukey-window-based smooth velocity shuttling protocol reduces valley excitations and average spin infidelity in disordered Si/SiGe quantum dots via analytical design and statistical simulations.
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Co-optimization of spin coherence and valley splitting in Si/SiGe heterostructures
DFT simulations recommend 3-4 nm Si wells with 50 ppm 73Ge and 29Si for valley splittings above 500 μeV and T2* above 15 μs in 700 nm² dots, with sharper interfaces helping both metrics.
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Multi-Qubit Entanglement of Unit Cell Pairs in SiMOS
Experimental demonstration of universal controllability, parallel readout, and certified three-qubit GHZ entanglement with extended lifetime in a two-unit-cell SiMOS quantum processor.
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Enabling Modularity for Spin Qubits via Driven Quantum Dot-Mediated Entanglement
A driven mediator quantum dot enables rapid single-pulse universal entangling gates between resonant exchange qubits via capacitive coupling, avoiding complex leakage-mitigation sequences.