#France #Quantum Computing #Grenoble #Quobly #FD-SOI

Quobly's Game-Changing Technology

Quobly, a leading quantum computing startup based in Grenoble, France, has made significant strides in the field of fault-tolerant quantum computing. Recently, the company revealed its innovative approach using FD-SOI technology, which presents a promising avenue for developing commercially scalable quantum systems. This announcement took center stage at the IEDM conference on December 9, 2024, garnering attention for its potential to transform quantum computing.

The semiconductor industry has historically played a crucial role in the evolution of classic computers by enabling them to be manufactured at reasonable costs. Quobly believes that this same industry can similarly revolutionize quantum computers, making them commercially viable and competitively priced. At the core of this new technology are silicon spin qubits. These unique qubits excel in facilitating large-scale fault-tolerant quantum calculations, achieving clock speeds in the microsecond range and exhibiting impressive fidelity rates exceeding 99% for single and two-qubit gate operations.

Advantages of FD-SOI Technology

Quobly's decision to adopt a fabless model utilizes already established semiconductor manufacturing infrastructures from industry leaders like STMicroelectronics, GlobalFoundries, and Samsung. The focus on FD-SOI technology positions Quobly to leverage decades of investment in semiconductor platforms. The company's collaborative efforts with research organizations such as CEA-Leti have led to successful demonstrations of key aspects of a quantum computer based on commercial FD-SOI technology.

Key Achievements:

• - The recent collaborative research has tackled vital challenges related to scaling quantum systems.
• - Notably, they have successfully tested individual qubit operations with electron and hole spin qubits, achieving a remarkably fast manipulation speed of 1μs and coherence times of up to 40μs (measured via Hahn echo).
• - The project also involved developing a standardized two-qubit gate cell, data showing feasibility in practical quantum computing applications.

The work demonstrates how combining classical and quantum computing elements on the same platform—termed as Quantum System on Chip (QSoC)—could lead to the development of scalable quantum processors. Quobly's innovations in this arena have marked it as a potential leader in making quantum computing both feasible and affordable.

Plans for the Future

With its roots established since 2022, Quobly aims to spearhead advancements in fault-tolerant quantum computing by integrating semiconductor-based qubits into its architecture. They are targeting ambitious goals, including systems capable of supporting millions of qubits, which would be a game changer in the quantum technology landscape.

In 2023, Quobly set a European record in fundraising for the quantum sector, securing €19 million to fuel its pursuits. The company aims to continuously enhance its technology to enable broader application and accessibility.

As Quobly pushes the boundaries of quantum technology, the firm invites interested parties to follow its journey at Quobly's website. With the groundbreaking potential of FD-SOI technology as a commercial platform for quantum computers, the future looks promising for Quobly and the field of quantum computing at large.