Probing two-body exceptional points in open dissipative systems
Peize Ding,
Wei Yi
Abstract:We study two-body non-Hermitian physics in the context of an open dissipative system depicted by the Lindblad master equation. Adopting a minimal lattice model of a handful of interacting fermions with single-particle dissipation, we show that the non-Hermitian effective Hamiltonian of the master equation gives rise to two-body scattering states with state-and interaction-dependent parity-time transition. The resulting two-body exceptional points can be extracted from the tracepreserving density-matrix dynamic… Show more
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