%0 Journal Article %1 PhysRevLett.131.116001 %A Kornich, Viktoriia %D 2023 %I American Physical Society %J Phys. Rev. Lett. %K a %N 11 %P 116001 %R 10.1103/PhysRevLett.131.116001 %T Current-Voltage Characteristics of the Normal Metal-Insulator-PT-Symmetric Non-Hermitian Superconductor Junction as a Probe of Non-Hermitian Formalisms %U https://link.aps.org/doi/10.1103/PhysRevLett.131.116001 %V 131 %X We study theoretically a junction consisting of a normal metal, PT-symmetric non-Hermitian superconductor, and an insulating thin layer between them. We calculate current-voltage characteristics for this junction using left-right and right-right bases and compare the results. We find that in the left-right basis, the Andreev-scattered particles move in the opposite direction compared with the right-right basis and conventional Andreev scattering. This leads to profound differences in current-voltage characteristics. Based on this and other signatures, we argue that the left-right basis is not applicable in this case. Remarkably, we find that the growth and decay with time of the states with imaginary energies in the right-right basis are equilibrated.

@article{PhysRevLett.131.116001, abstract = {We study theoretically a junction consisting of a normal metal, PT-symmetric non-Hermitian superconductor, and an insulating thin layer between them. We calculate current-voltage characteristics for this junction using left-right and right-right bases and compare the results. We find that in the left-right basis, the Andreev-scattered particles move in the opposite direction compared with the right-right basis and conventional Andreev scattering. This leads to profound differences in current-voltage characteristics. Based on this and other signatures, we argue that the left-right basis is not applicable in this case. Remarkably, we find that the growth and decay with time of the states with imaginary energies in the right-right basis are equilibrated.}, added-at = {2024-02-21T12:48:37.000+0100}, author = {Kornich, Viktoriia}, biburl = {https://www.bibsonomy.org/bibtex/2ac1b5351bbeb7bfc8d2e82611547fc2b/ctqmat}, day = 14, doi = {10.1103/PhysRevLett.131.116001}, interhash = {18ab07ebb35f0ca05f88a1c58ee9eb2e}, intrahash = {ac1b5351bbeb7bfc8d2e82611547fc2b}, journal = {Phys. Rev. Lett.}, keywords = {a}, month = {09}, number = 11, numpages = {6}, pages = 116001, publisher = {American Physical Society}, timestamp = {2024-02-21T12:48:37.000+0100}, title = {Current-Voltage Characteristics of the Normal Metal-Insulator-PT-Symmetric Non-Hermitian Superconductor Junction as a Probe of Non-Hermitian Formalisms}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.131.116001}, volume = 131, year = 2023 }