%0 Journal Article %1 PhysRevLett.125.180403 %A Budich, Jan Carl %A Bergholtz, Emil J. %D 2020 %I American Physical Society %J Phys. Rev. Lett. %K a %N 18 %P 180403 %R 10.1103/PhysRevLett.125.180403 %T Non-Hermitian topological sensors %U https://link.aps.org/doi/10.1103/PhysRevLett.125.180403 %V 125 %X We introduce and study a novel class of sensors whose sensitivity grows exponentially with the size of the device. Remarkably, this drastic enhancement does not rely on any fine-tuning, but is found to be a stable phenomenon immune to local perturbations. Specifically, the physical mechanism behind this striking phenomenon is intimately connected to the anomalous sensitivity to boundary conditions observed in non-Hermitian topological systems. We outline concrete platforms for the practical implementation of these non-Hermitian topological sensors ranging from classical metamaterials to synthetic quantum materials.

@article{PhysRevLett.125.180403, abstract = {We introduce and study a novel class of sensors whose sensitivity grows exponentially with the size of the device. Remarkably, this drastic enhancement does not rely on any fine-tuning, but is found to be a stable phenomenon immune to local perturbations. Specifically, the physical mechanism behind this striking phenomenon is intimately connected to the anomalous sensitivity to boundary conditions observed in non-Hermitian topological systems. We outline concrete platforms for the practical implementation of these non-Hermitian topological sensors ranging from classical metamaterials to synthetic quantum materials.}, added-at = {2023-10-26T10:54:37.000+0200}, author = {Budich, Jan Carl and Bergholtz, Emil J.}, biburl = {https://www.bibsonomy.org/bibtex/24cf6b56cff93d050785f321474ee0fb3/ctqmat}, day = 29, description = {Phys. Rev. Lett. 125, 180403 (2020) - Non-Hermitian Topological Sensors}, doi = {10.1103/PhysRevLett.125.180403}, interhash = {5d057f90a268ca7f0d60eaaaca9f5f7e}, intrahash = {4cf6b56cff93d050785f321474ee0fb3}, journal = {Phys. Rev. Lett.}, keywords = {a}, month = {10}, number = 18, numpages = {7}, pages = 180403, publisher = {American Physical Society}, timestamp = {2023-10-26T10:54:37.000+0200}, title = {Non-Hermitian topological sensors}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.125.180403}, volume = 125, year = 2020 }