Spintronics and quantum information science are two promising candidates for innovating
information processing technologies. The combination of these two fields enables us to build …

We propose an experimentally realizable nonreciprocal magnonic device at the single-
magnon level by exploiting magnon blockade in a magnon-based hybrid system. The …

Non-Hermitian Hamiltonians provide an alternative perspective on the dynamics of quantum
and classical systems coupled non-conservatively to an environment. Once primarily an …

Generation of entanglement between spatially separated macroscopic systems enables
quantum networks and fundamental tests of quantum theory. Here, we propose a scheme to …

Symmetry plays a fundamentally important role in physics. In this work, we find a
conservation law, S†(H c†) S (H c)= I, which is valid for any non-Hermitian scattering center …

Loss-induced transparency (LIT), featuring the revival of optical intensity by adding loss, has
been demonstrated in classical optics. However, a fundamental question has remained …

Nonlinear magnonics based on the coupling of magnons and optical photons has become a
crucial topic in the quantum magnonic field. Here, we demonstrate the magnon laser, the …

Higher-order exceptional points (EPs), resulting from non-Hermitian degeneracies, have
shown greater advantages in sensitive enhancement than second-order EPs (EP2s) …

We show how to enhance the detection sensitivity of magnon Kerr nonlinearity (MKN) in
cavity magnonics. The considered cavity-magnon system consists of a three-dimensional …

In the past few years, the emerging photon-magnon dissipative coupling offers us an
effective way to design and exploit losses to fulfill quantum tasks in hybrid cavity magnonics …