1. C12, a French quantum computing startup, has raised $18 million in a funding round led by Bpifrance, the French public investment bank, and other investors. The company is focused on developing a new approach to stabilizing qubits (the basic units of quantum computing) using carbon nanotubes, which could potentially lead to more reliable and scalable quantum computers.

2. The funding will be used to accelerate the development of C12's technology and to expand its team of researchers and engineers. The company is working on a novel quantum computing architecture that aims to overcome some of the challenges faced by traditional quantum computing approaches, such as the fragility of qubits and the difficulty of scaling up quantum systems.

3. C12's technology is based on the use of carbon nanotubes, which are cylindrical structures made of carbon atoms that have unique electronic and mechanical properties. The company believes that by using carbon nanotubes to create and control qubits, they can achieve greater stability and coherence, which are critical for the development of practical quantum computers.