%0 Journal Article %1 PhysRevResearch.3.023001 %A Groenendijk, Solofo %A Schmidt, Thomas L. %A Meng, Tobias %D 2021 %I American Physical Society %J Phys. Rev. Res. %K a %N 2 %P 023001 %R 10.1103/PhysRevResearch.3.023001 %T Universal Hall conductance scaling in non-Hermitian Chern insulators %U https://link.aps.org/doi/10.1103/PhysRevResearch.3.023001 %V 3 %X We investigate the Hall conductance of a two-dimensional Chern insulator coupled to an environment causing gain and loss. Introducing a biorthogonal linear response theory, we show that sufficiently strong gain and loss lead to a characteristic nonanalytical contribution to the Hall conductance. Near its onset, this contribution exhibits a universal power law with a power 3/2 as a function of Dirac mass, chemical potential, and gain strength. Our results pave the way for the study of non-Hermitian topology in fermionic transport experiments.

@article{PhysRevResearch.3.023001, abstract = {We investigate the Hall conductance of a two-dimensional Chern insulator coupled to an environment causing gain and loss. Introducing a biorthogonal linear response theory, we show that sufficiently strong gain and loss lead to a characteristic nonanalytical contribution to the Hall conductance. Near its onset, this contribution exhibits a universal power law with a power 3/2 as a function of Dirac mass, chemical potential, and gain strength. Our results pave the way for the study of non-Hermitian topology in fermionic transport experiments.}, added-at = {2021-11-08T09:45:28.000+0100}, author = {Groenendijk, Solofo and Schmidt, Thomas L. and Meng, Tobias}, biburl = {https://www.bibsonomy.org/bibtex/2cd519da7dfc48276fd8d37c0c5c3cc12/ctqmat}, day = 01, description = {Phys. Rev. Research 3, 023001 (2021) - Universal Hall conductance scaling in non-Hermitian Chern insulators}, doi = {10.1103/PhysRevResearch.3.023001}, interhash = {d5a3e841446b1b1d61dd325afac0a478}, intrahash = {cd519da7dfc48276fd8d37c0c5c3cc12}, journal = {Phys. Rev. Res.}, keywords = {a}, month = apr, number = 2, numpages = {9}, pages = 023001, publisher = {American Physical Society}, timestamp = {2023-10-18T15:38:35.000+0200}, title = {Universal Hall conductance scaling in non-Hermitian Chern insulators}, url = {https://link.aps.org/doi/10.1103/PhysRevResearch.3.023001}, volume = 3, year = 2021 }