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- W4309804071 abstract "We investigate a non-Hermitian many-body Hamiltonian describing a system coupled to an external bath. Using non-Hermitian mean-field theory, we show that the Hamiltonian's eigenvalues exhibit a singularity in the parameter space, leading to the emergence of a phase transition point called the exceptional point. At this point, the Meissner effect breaks down while gap parameters remain finite. Our work provides insights into the role of an exceptional point in the non-Hermitian many-body systems." @default.
- W4309804071 created "2022-11-29" @default.
- W4309804071 creator A5038365744 @default.
- W4309804071 date "2022-11-21" @default.
- W4309804071 modified "2023-10-16" @default.
- W4309804071 title "Breakdown of the Meissner effect at the zero exceptional point in non-Hermitian two-band BCS model" @default.
- W4309804071 doi "https://doi.org/10.48550/arxiv.2211.11422" @default.
- W4309804071 hasPublicationYear "2022" @default.
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