| Company type | Privately Held Company |
|---|---|
| Industry | Quantum computing |
| Founded | 2020 |
| Headquarters | |
Key people | Théau Peronnin, CEO; Raphaël Lescanne, CTO |
Number of employees | 110 |
| Website | www |
Alice & Bob is a quantum computing company based in Paris and Boston. [1] [2] The company is known for its cat qubit quantum architecture and its work in quantum error correction. [1] [3]
Alice & Bob was spun out of a federation of French research labs by Théau Peronnin and Raphaël Lescanne. [4] While pursuing his PhD in physics, Peronnin was part of the quantum-electronics group at École normale supérieure, building the academic foundations for quantum computers. Meanwhile, Lescanne published a paper on exponential suppression of bit-flips in a qubit encoded in an oscillator. [5] Together, Peronnin and Lescanne co-founded Alice & Bob in 2020 to continue this work. [6] [7]
Since then, the company has raised more than $134 million in funding to develop fault-tolerant quantum computers based on cat qubits. [1] [8]
In 2023, Alice & Bob opened a subsidiary in Boston to facilitate the company's expansion. [9]
The following year, the company was selected for France's $548 million PROQCIMA initiative, a key component of the nation’s National Strategy for Quantum. [10]
In 2025, Alice & Bob announced plans to build a $50 million advanced quantum computing laboratory in Paris to support product development and testing. [11]
Later that year, DARPA selected the company to join its Quantum Benchmarking initiative, a project focused on identifying which approaches can deliver an industrially useful quantum computer. [12]
Alice & Bob's architecture is based on cat qubits, named after Schrödinger's cat thought experiment. [13]
Cat qubits are designed to exponentially reduce bit-flip errors, thereby reducing the resources required for error correction. [3] [13]
Alice & Bob uses a two-photon injection scheme to maintain the system energy level and protect against decoherence. This results in exponential protection against bit flips and a reduction in chip area required for implementation. [14]
By improving hardware efficiency with built-in error correction, Alice & Bob plans to develop a 100 logical qubit device by 2030 using this cat qubit approach. [13] [15]