Building Quantum Computers Using 2D Materials

Quantum computing promises to revolutionize how we solve problems. The advantages that come from using quantum mechanics to solve hard problems are colossal. But we are still a long way from demonstrating solving a functionally useful problem. The main reason is that to solve these problems we require a lot of qubits, as for complex problems the quantum algorithms often require error correction. Which dramatically increases the number of qubits required, from tens to thousands, or even more. Thus, we need to find techniques to scale the production of qubits in a compact and reliable manner. In this latest work from a team at MIT, two-dimensional materials were used to construct superconducting qubits.

They use a combination of NbSi2 and hBN to form a Josephson junction and perform tests on the Qubit’s performance compared to traditional fabricated superconducting qubits. They demonstrate that the performance is very similar despite having a significantly smaller size. This is a promising demonstration of fabricating with 2D materials.