Experimental realization of non-Hermitian-ground-state quantum MIPS

Determine whether quantum analogues of motility-induced phase separation realized in the ground state of a non-Hermitian Hamiltonian can be experimentally realized.

Background

The paper discusses a theoretical proposal in which a quantum analogue of motility-induced phase separation is realized in the ground state of a non-Hermitian Hamiltonian. In contrast, the present work studies quantum motility-induced phase separation through a Lindblad master equation, combining coherent spin rotation with engineered dissipative directed hopping.

The authors identify the experimental attainability of the non-Hermitian-ground-state proposal as unresolved and consequently present their Lindblad setting as a more realistic framework for realizing an actual quantum MIPS phase. Establishing experimental realizability would clarify whether the proposed non-Hermitian equilibrium-like route can be implemented in a physical quantum platform.

References

However, whether such ground states can be experimentally realized remains unclear, so that we consider the present evidence in a Lindblad master equation setting as the first realistic setting for an actual quantum MIPS phase.

Quantum motility-induced phase separation  (2608.25649 - Brunner et al., 26 Aug 2026) in Section "Extended Model"