Imposing chirality on a physical system engenders unconventional energy flow and
responses, such as the Aharonov–Bohm effect and the topological quantum Hall phase for …

We theoretically predict the squeezing-induced point-gap topology together with a symmetry-
protected Z 2 “skin effect” in a one-dimensional (1D) quadratic-bosonic system. Protected by …

Nonreciprocity means that the transmission of a signal depends on its direction of
propagation. Despite vastly different platforms and underlying working principles, the …

Unlike their fermionic counterparts, the dynamics of Hermitian quadratic bosonic
Hamiltonians are governed by a generally non-Hermitian Bogoliubov-de Gennes effective …

The non-Hermitian skin effect (NHSE) is a phenomenon whereby certain non-Hermitian
lattice Hamiltonians host an extensive number of eigenmodes condensed to the boundary …

We consider the probability distributions of the subsystem (staggered) magnetization in
ordered and disordered models of quantum magnets in D dimensions. We focus on …

Non-Hermitian photonic lattices combine the peculiar consequences of energy non-
conservation with the physics of bandstructures, giving rise to a variety of exotic properties …

We study double-barrier interfaces separating regions of asymptotically subsonic and
supersonic flow of Bose-condensed atoms. These setups contain at least one black hole …

Abstract Number-non-conserving terms in quadratic bosonic Hamiltonians can induce
unwanted dynamical instabilities. By exploiting the pseudo-Hermitian structure built in to …

We consider the dynamics of a Bose-Einstein condensate with two internal states, coupled
through a coherent drive. We focus on a specific quench protocol, in which the sign of the …