The localization length of the non-Hermitian skin effect is encoded in the quantum metric of right eigenstates, exhibiting power-law divergences at gapless points and discontinuities at cusps of the generalized Brillouin zone.
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Non-Hermitian skin effect in Rashba nanowire with ferromagnetic lead produces nonreciprocal nonlocal conductance detectable by transport spectroscopy, with exceptional points shifting under open boundary conditions.
Exceptional points in a minimal multiterminal SN junction produce visible signatures in Andreev spectroscopy but only minor effects on Josephson current.
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Quantum geometry of the non-Hermitian skin effect
The localization length of the non-Hermitian skin effect is encoded in the quantum metric of right eigenstates, exhibiting power-law divergences at gapless points and discontinuities at cusps of the generalized Brillouin zone.