Linear optical quantum computation uses photons as carriers of information (i.e. qubits) in an optical circuit with beam splitters and phase shifters that process this information. You can read more about how optical quantum computing works here. Let different outputs of an optical quantum circuit correspond to different spending models…

Quantum computing is at the forefront of technology, with the potential to transform how we process information. This emerging field leverages quantum phenomena such as quantum superposition and entanglement to accomplish computational tasks at unprecedented speeds. Among the different strategies for achieving quantum computing, photonic quantum computing is a particularly…

Part 1: What is randomness? What is randomness? And how can we generate it? Both questions — the first mathematical, the second technological — have profound implications in many of today’s industries and our everyday lives. Imagine that we wanted to make a random list of 0s and 1s. This…

The scientific results just published in the new issue of the journal Nature Photonics represents another “first” in the technological achievements of the quantum computing company Quandela, towards the development of photonic quantum computers. Within a collaborative effort, several academic research groups (Pascale Senellart at C2N-CNRS, Sophia Economou at Virginia…

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1 — Introduction (non-technical summary) The huge promise offered by quantum computers has led to a surge in theoretical and experimental research in quantum computing, with the goal of developing and optimising quantum hardware and software. Already, many small-scale quantum devices (known commonly as quantum processing units or QPUs) are…

Part 1: Quantum simulations Quantum computing is a computational paradigm which encodes information into quantum systems called qubits. These qubits are manipulated using superposition and entanglement to achieve a computational advantage over classical computers. In particular, photonic qubits are one of the most promising quantum-computer technologies [1], with billions invested across the world. …

Machine Learning Over the last decade, machine learning (ML) and Artificial Intelligence (AI) have dominated the information-technology landscape, to the degree where most enterprises use ML-powered solutions. Here are a few examples you may be familiar with: Virtual assistants like Siri or Alexa use ML to analyse speech patterns. The…

One of my fondest childhood memories is enjoying the sweet, delicious taste of a large-scale fault tolerant quantum computer. In this article, we’re going to explain how you can bake your own scrumptious quantum processor from scratch. …