The Photonic Advantage

Fastest path to scalable, robust, and practical quantum computers.

How Xanadu’s chips work

Input
Output

Logic Gates

Xanadu Chip Xanadu Chip Xanadu Chip Xanadu Chip

Squeezed states

A sequence of classical laser pulses are injected into the chip and coupled into micro-resonators, generating special optical states called squeezed states.

These states consist of a quantum superposition of different numbers of photons, and exit the resonators into a set of bus waveguides.

Photon Counting

At the readout stage, the photons travel to special detectors called transition edge sensors or TES.

These superconducting chip-scale detectors absorb the photons, allowing us to count the number of photons. This information is digitized and extracted by Xanadu’s real-time data acquisition system, and returned back to Strawberry Fields as a sequence of integers.

Programmable interferometer.

The squeezed states then propagate into a network of phase shifters and beam splitters called an interferometer. This stage makes up the set of quantum gates.

Most of the information specified by the Strawberry Fields user is encoded via these gates. By setting voltages across electronic phase shifters, a gate sequence is loaded into the chip and applied to the squeezed states.

The entangled quantum state programmed by the user is then coupled back out of the chip for readout.

Why Photonics?

Scalable

Most viable approach towards large scale quantum computers, leveraging mature silicon computing manufacturability and light's ability to carry information across networks.

Xanadu silicon computing Xanadu silicon computing

Robust

Towards fault-tolerance via robust error-resistant physical qubits and flexibility in designing error-correcting codes.

Xanadu qubits

Practical

Operates primarily at room temperature and easily integrates into existing telecommunication infrastructure, enabling a system that can be housed in a standard, compact server rack and installed in regular data centers.

Xanadu compact server Xanadu compact server