Publication Date:
2018-08-09
Description:
Author(s): Kohei Kawabata, Yuto Ashida, Hosho Katsura, and Masahito Ueda Nonequilibrium open systems effectively described by non-Hermitian Hamiltonians with parity-time ( P T ) symmetry have recently attracted considerable attention due to their properties with no Hermitian counterparts. In particular, there exists a growing interest in non-Hermitian topological phases of matter. Here, the authors show that a P T -symmetric topological superconducting wire possesses two distinct types of unconventional edge modes, those with complex energies and with nonorthogonal Majorana zero modes. The latter induce anomalous particle transport with nonlocal currents present only at the edges. This work explores a unique nonequilibrium topological phenomenon that results from the interplay between P T symmetry and topological superconductivity. [Phys. Rev. B 98, 085116] Published Wed Aug 08, 2018
Keywords:
Electronic structure and strongly correlated systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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