A variational quantum algorithm for non-Hermitian Hamiltonians matches exact diagonalization on small transverse Ising chains and gives tentative evidence that the imaginary-field model has no quantum phase transition.
Non-Hermitian Topological Phenomena: A Review,
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Quantum Phase Transition of Non-Hermitian Systems using Variational Quantum Techniques
A variational quantum algorithm for non-Hermitian Hamiltonians matches exact diagonalization on small transverse Ising chains and gives tentative evidence that the imaginary-field model has no quantum phase transition.