We investigate nonreciprocal photon correlations in coupled microring resonators with
directional quantum squeezing (quantum parametric amplification). We show that the …

We propose a scheme to generate nonreciprocal photon blockade in a stationary
whispering gallery microresonator system based on two physical mechanisms. One of the …

Chiral quantum systems have received intensive attention in fundamental physics and
applications in quantum information processing including optical isolation and photon …

Quantum entanglement plays a key role in both understanding the fundamental aspects of
quantum physics and realizing various quantum devices for practical applications. Here we …

We propose an all-optical approach to achieve optical nonreciprocity on a chip by quantum
squeezing one of two coupled resonator modes. By parametric pumping a χ (2)-nonlinear …

Delicate engineering of integrated nonlinear structures is required for developing scalable
sources of non-classical light to be deployed in quantum information processing systems. In …

The generation of squeezed and entangled light fields is a crucial ingredient for the
implementation of quantum information protocols. In this context, semiconductor materials …

The interaction strength of an oscillator to a qubit grows with the oscillator's vacuum field
fluctuations. The well-known degenerate parametric oscillator has revived interest in the …

We present a scheme for generating and manipulating three-mode squeezed states with
genuine tripartite entanglement by injecting single-mode squeezed light into an array of …

Photon antibunching is a quantum phenomenon typically observed in strongly nonlinear
systems where photon blockade suppresses the probability of detecting two photons at the …