Quantum light–matter interfaces are at the heart of photonic quantum technologies. Quantum
memories for photons, where non-classical states of photons are mapped onto stationary …

The distribution of entangled states across the nodes of a future quantum internet will
unlock fundamentally new technologies. Here, we report on the realization of a three-node …

Although universal quantum computers ideally solve problems such as factoring integers
exponentially more efficiently than classical machines, the formidable challenges in building …

Universal multiport interferometers, which can be programmed to implement any linear
transformation between multiple channels, are emerging as a powerful tool for both classical and …

Large-scale quantum networks promise to enable secure communication, distributed quantum
computing, enhanced sensing and fundamental tests of quantum mechanics through the …

The impact of future quantum networks hinges on high-quality quantum entanglement
shared between network nodes. Unavoidable imperfections necessitate a means to improve …

We study the simultaneous estimation of multiple phases as a discretized model for the
imaging of a phase object. We identify quantum probe states that provide an enhancement …

We present a scheme for linear optical quantum computing using time-bin-encoded qubits
in a single spatial mode. We show methods for single-qubit operations and heralded …

Quantum teleportation is a fundamental concept in quantum physics 1 that now finds important
applications at the heart of quantum technology, including quantum relays 2 , quantum …

Increasing the complexity of quantum photonic devices is essential for many optical information
processing applications to reach a regime beyond what can be classically simulated, …