Opinion: Democratizing Spin Qubits

Charles Tahan

Laboratory for Physical Sciences, 8050 Greenmead Rd, College Park, MD 20740

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I've been building Powerpoint-based quantum computers with electron spins in silicon for 20 years. Unfortunately, real-life-based quantum dot quantum computers are harder to implement. Materials, fabrication, and control challenges still impede progress. The way to accelerate discovery is to make and measure more qubits. Here I discuss separating the qubit realization and testing circuitry from the materials science and on-chip fabrication that will ultimately be necessary. This approach should allow us, in the shorter term, to characterize wafers non-invasively for their qubit-relevant properties, to make small qubit systems on various different materials with little extra cost, and even to test spin-qubit to superconducting cavity entanglement protocols where the best possible cavity quality is preserved. Such a testbed can advance the materials science of semiconductor quantum information devices and enable small quantum computers. This article may also be useful as a light and light-hearted introduction to quantum dot spin qubits.

I've been building Powerpoint-based quantum computers with electron spins in silicon for 20 years. Unfortunately, real-life-based quantum dot quantum computers are harder to implement. The way to accelerate discovery is to make and measure more qubits. Here I discuss separating the qubit realization and testing circuitry from the materials science and on-chip fabrication that will ultimately be necessary. Such a testbed can advance the materials science of semiconductor quantum information devices and enable small quantum computers.

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The above citations are from Crossref's cited-by service (last updated successfully 2024-06-22 03:21:26) and SAO/NASA ADS (last updated successfully 2024-06-22 03:21:26). The list may be incomplete as not all publishers provide suitable and complete citation data.