A quantum computer attains computational advantage when outperforming the best
classical computers running the best-known algorithms on well-defined tasks. No photonic …

Integrated photonics will play a key role in quantum systems as they grow from few-qubit
prototypes to tens of thousands of qubits. The underlying optical quantum technologies can …

Realizing a large-scale quantum computer requires hardware platforms that can
simultaneously achieve universality, scalability, and fault tolerance. As a viable pathway to …

To harness the potential of a quantum computer, quantum information must be protected
against error by encoding it into a logical state that is suitable for quantum error correction …

Quantum computing can be realized with numerous different hardware platforms and
computational protocols. A highly promising, and potentially scalable, idea is to combine a …

A continuous-wave (CW) broadband high-level optical quadrature squeezer is essential for
high-speed large-scale fault-tolerant quantum computing on a time-domain-multiplexed …

Continuous-variable measurement-based quantum computation on cluster states has in
recent years shown great potential for scalable, universal, and fault-tolerant quantum …

Measurement-based quantum computation with optical time-domain multiplexing is a
promising method to realize a quantum computer from the viewpoint of scalability. Fault …

We examine continuous-variable gate teleportation using entangled states made from pure
product states sent through a beam splitter. We show that such states are Choi states for a …

We propose a high-rate generation method of optical Schrödinger cat states. Thus far,
photon subtraction from squeezed vacuum states has been a standard method in cat-state …