We propose a scheme for implementing nonreciprocal transmission and a nonreciprocal
photon blockade (PB) in a whispering-gallery-mode optomechanical resonator. By …

We explore the photon blockade in optomechanical systems with a position-modulated Kerr-
type nonlinear coupling, ie $ H_ {\rm int}\sim\hat {a}^{\dagger2}\hat {a}^ 2 (\hat {b} …

We propose a scheme to achieve nonreciprocal magnon blockade via the Barnett effect in a
magnon-based hybrid system. Due to the rotating yttrium iron garnet (YIG) sphere, the …

In this paper, we propose how to achieve nonreciprocal unconventional photon blockade
(NUPB) in a spinning system consisting of two single-mode cavities with χ (2) nonlinearity …

Nonreciprocal transmission, reflection and absorption are very important in quantum
science. For their realization, cavity magnonics is attracting much attention, where Kittel …

Optical isolation is important for protecting a laser from damage due to the detrimental back
reflection of light. It typically relies on breaking Lorentz reciprocity and normally is achieved …

According to the Lorentz reciprocity theorem, an electromagnetic wave has the reciprocity of
bi-directional transmission through ordinary time inversion invariant media. In some special …

We develop a theory for the magnon Kerr effect in a cavity magnonics system, consisting of
magnons in a small yttrium iron garnet (YIG) sphere strongly coupled to cavity photons, and …

Nonreciprocity has always been a subject of interest and plays a key role in a variety of
applications like signal processing and noise isolation. In this work, we propose a simple …

Photon blockade provides an effective way to realize the single-photon source, which
attracts intensive attention in the fields of quantum optics and quantum information. Here in …