Digital-Controlled Method of Conveyor-Belt Spin Shuttling in Silicon for Large-Scale Quantum Computation

Abstract

We propose a digital-controlled conveyor-belt shuttling method for silicon-based quantum processors, addressing the scalability challenges of conventional analog sinusoidal implementations. By placing a switch matrix and low-pass filters in a cryogenic environment, our approach synthesizes near-sinusoidal waveforms from a limited number of DC voltage levels. Simulation results demonstrate that the proposed method achieves fidelity comparable to analog methods while significantly reducing wiring overhead and power dissipation. Moreover, the design offers robustness against device-level variations, enabling large-scale integration of high-fidelity spin shuttling for quantum error correction.

arXiv comment17 pages, 10 figures, accepted for publication in Physical Review Applied

References in corpus (48)

• Fault-tolerant quantum computation by anyons
• Quantum Computation with Quantum Dots
• Coupled quantum dots as quantum gates
• Silicon Quantum Electronics
• An addressable quantum dot qubit with fault-tolerant control fidelity
• A >99.9%-fidelity quantum-dot spin qubit with coherence limited by charge noise
• Fault-tolerant quantum computation with high threshold in two dimensions
• Semiconductor Spin Qubits
• Topological fault-tolerance in cluster state quantum computation
• Interfacing spin qubits in quantum dots and donors - hot, dense and coherent
• A CMOS silicon spin qubit
• Computing with spin qubits at the surface code error threshold
• Fast universal quantum control above the fault-tolerance threshold in silicon
• A fault-tolerant one-way quantum computer
• Silicon CMOS architecture for a spin-based quantum computer
• Quantum computing with nearest neighbor interactions and error rates over 1%
• Two-qubit silicon quantum processor with operation fidelity exceeding 99%
• CMOS-based cryogenic control of silicon quantum circuits
• Shuttling a single charge across a one-dimensional array of silicon quantum dots
• Scaling silicon-based quantum computing using CMOS technology: State-of-the-art, Challenges and Perspectives
• Towards practical classical processing for the surface code
• Valley Splitting Theory of SiGe/Si/SiGe Quantum Wells
• Review of performance metrics of spin qubits in gated semiconducting nanostructures
• Gate fidelity and coherence of an electron spin in a Si/SiGe quantum dot with micromagnet
• Electrically controlling single spin qubits in a continuous microwave field
• Quantifying the quantum gate fidelity of single-atom spin qubits in silicon by randomized benchmarking
• Quantum Dot Arrays in Silicon and Germanium
• Probing single electrons across 300 mm spin qubit wafers
• Low-frequency spin qubit detuning noise in highly purified ${}^{28}$Si/SiGe
• Coherent spin qubit transport in silicon
• Conveyor-mode single-electron shuttling in Si/SiGe for a scalable quantum computing architecture
• Spin and valley-orbit splittings in SiGe/Si heterostructures
• Magnetic field dependence of valley splitting in realistic Si/SiGe quantum wells
• Atomic fluctuations lifting the energy degeneracy in Si/SiGe quantum dots
• Intervalley coupling for interface-bound electrons in silicon: An effective mass study
• Blueprint of a scalable spin qubit shuttle device for coherent mid-range qubit transfer in disordered Si/SiGe/SiO${}_2$
• The SpinBus Architecture: Scaling Spin Qubits with Electron Shuttling
• Practical Strategies for Enhancing the Valley Splitting in Si/SiGe Quantum Wells
• Shuttling an electron spin through a silicon quantum dot array
• Assessment of error variation in high-fidelity two-qubit gates in silicon
• Si/SiGe QuBus for single electron information-processing devices with memory and micron-scale connectivity function
• Spin-EPR-pair separation by conveyor-mode single electron shuttling in Si/SiGe
• Simulated coherent electron shuttling in silicon quantum dots
• High-fidelity single-spin shuttling in silicon
• Strategies for enhancing spin-shuttling fidelities in Si/SiGe quantum wells with random-alloy disorder
• Towards early fault tolerance on a 2$\times$N array of qubits equipped with shuttling
• A sparse spin qubit array with integrated control electronics
• Decoherence of electron spin qubit during transfer between two semiconductor quantum dots at low magnetic fields