Scalable Gate Architecture for a One-Dimensional Array of Semiconductor Spin Qubits

2016/07/24 by D. M. Zajac, Thomas Hazard, T. M. Hazard +5 · 3 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Charge (physics) #Heterojunction #Optoelectronics #Physics #Quantum #Quantum and electron transport phenomena #Quantum computer #Quantum dot #Quantum gate #Quantum mechanics #Qubit #Semiconductor materials and devices #Spin (aerodynamics) #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physrevapplied.6.054013

published as Phys. Rev. Applied 6, 054013 (2016)

arxiv created 2016/07/24 · openalex created_date 2016/09/16 · openalex publication_date 2016/11/28 · arxiv updated 2016/12/07 · openalex updated_date 2026/08/06

Abstract

Long coherence times render electron spins in quantum dots promising for scaled-up quantum computation, but large arrays of semiconductor spin qubits have yet to be realized. The authors take the next steps in scaling by demonstrating an array of n\phantom\rule00exi\phantom\rule00exn\phantom\rule00exe quantum dots with low electron occupancy, reproducible single-dot characteristics, and full charge-state readout. Beyond quantum information science, this also represents a major advance for the quantum-dot community, where double and triple quantum dots have been the standard for over a decade.

Citations

• Spin-valley lifetimes in a silicon quantum dot with tunable valley splitting
• Irreversibility on the Level of Single-Electron Tunneling
• Enhancement-mode buried strained silicon channel quantum dot with tunable lateral geometry
• Cramming More Components Onto Integrated Circuits
• Measurement of valley splitting in high-symmetry Si/SiGe quantum dots
• Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots
• Single charge sensing and transport in double quantum dots fabricated from commercially grown Si/SiGe heterostructures
• Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
• Spins in few-electron quantum dots
• Single-shot read-out of an individual electron spin in a quantum dot

Cited by

• A two-dimensional array of single-hole quantum dots
• Palladium gates for reproducible quantum dots in silicon
• Dynamical second-order noise sweetspots in resonantly driven spin qubits