Controllable unidirectional transport and light trapping using a one-dimensional lattice with non-Hermitian coupling
Controllable unidirectional transport and light trapping using a one-dimensional lattice with non-Hermitian coupling
Abstract We propose a one-dimensional tight-binding lattice with special non-Hermitian coupling, the imaginary part of which is modulated by an effective Peierls phase arising from the synthetic magnetic field. Such a non-Hermitian lattice supports robust unidirectional transport that is reflectionless and immune to defects; it thus can serve as a …