Squeezed vacuum state of light is an important concept of quantum optics which has an
uncertainty reduction in a specific quadrature compared to the coherent vacuum state. The …

The interaction of light and matter at the single-photon level is of central importance in
various fields of physics, including, eg, condensed matter physics, astronomy, quantum …

Realization of a room-temperature ultrafast photon-number-resolving quantum
nondemolition (QND) measurement would have significant implications for photonic …

We demonstrate the emergence of nonreciprocal superradiant phase transitions and novel
multicriticality in a cavity quantum electrodynamics system, where a two-level atom interacts …

We develop a protocol for learning a class of interacting bosonic Hamiltonians from
dynamics with Heisenberg-limited scaling. For Hamiltonians with an underlying bounded …

Here, a scheme for a controllable nonreciprocal phonon laser is proposed in a hybrid
photonic molecule system consisting of a whispering-gallery mode (WGM) optomechanical …

Photonic integrated circuits with second-order (χ^(2)) nonlinearities are rapidly scaling to
remarkably low powers. At this time, state-of-the-art devices achieve saturated nonlinear …

Quantum computing is an emerging technology that is expected to realize an exponential
increase in computing power. Recently, its theoretical foundation and application scenarios …

Quantum squeezing is an important resource in modern quantum technologies, such as
quantum precision measurement and continuous-variable quantum information processing …

Fast and high-fidelity qubit measurement is essential for realizing quantum error correction,
a key ingredient to universal quantum computing. For electron spin qubits, fast readout is …