Quobly raises $150M for its silicon spin qubit technology
French quantum computing startup Quobly SAS today announced that it has raised €130 million, or about $150 million, to commercialize its technology.
The Series A round was led by publicly traded chipmaker STMicroelectronics NV, Bpifrance, SEALSQ and Isalt. Quobly previously raised €40 million. The company used that capital to demonstrate that its technology works.
Quobly is developing quantum chips based on a design known as a silicon spin qubit architecture. The technology is powered by quantum dots, tiny semiconducting crystals that measure a few nanometers across. Each crystal contains an electron that functions as a qubit. Data is encoded into the electrons’ spin, a property that influences their magnetic field.
There are several obstacles to building large-scale quantum computers based on a spin qubit design. One is that it’s difficult to reliably coordinate a large number of electrons placed in quantum dots. Reading the results of the calculations that those electrons perform also poses a challenge. According to Quobly, its technology addresses both limitations.
