Pseudomagnetic suppression of non-Hermitian skin effect

Abstract

It has recently been shown that the non-Hermitian skin effect can be suppressed by magnetic fields. In this work, using a two-dimensional tight-binding lattice, we demonstrate that a pseudomagnetic field can also lead to the suppression of the non-Hermitian skin effect. With an increasing pseudomagnetic field, the skin modes are found to be pushed into the bulk, accompanied by the reduction of skin topological area and the restoration of Landau level energies. Our results provide a time-reversal invariant route to localization control and could be useful in various classical wave devices that are able to host the non-Hermitian skin effect but inert to magnetic fields.

10 pages, 8 figures

References in corpus (6)

• The physics of exceptional points
• Topological Origin of Non-Hermitian Skin Effects
• Coherent Perfect Absorbers: Time-reversed Lasers
• Efficient Light Funneling based on the non-Hermitian Skin Effect
• Non-Hermitian waves in a continuous periodic model and application to photonic crystals
• Tunable two-dimensional laser arrays with zero-phase locking

Cited by in corpus (6)

• Non-Hermitian reshaping of high-order Landau modes
• Exceptional deficiency of non-Hermitian systems
• Controllable suppression of Non-Hermitian skin effects
• Non-Hermitian higher-order topological insulators enabled by altermagnet engineering
• Magnetic Control of the Non-Hermitian Skin Effect in Two-Dimensional Lattices
• Zero Indirect Band Gap in Non-Hermitian Systems