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quant-ph2024
Supercharging exceptional points: Full-spectrum pairwise coalescence in non-Hermitian systems
Yusuf H. Erdogan, Masudul Haque
We consider non-Hermitian tight-binding one-dimensional Hamiltonians and show that imposing a certain symmetry causes all eigenvalues to pair up and the corresponding eigenstates t…
quant-ph2024★ 23 cited
Quantum Origin of Limit Cycles, Fixed Points, and Critical Slowing Down
Shovan Dutta, Shu Zhang, Masudul Haque
Among the most iconic features of classical dissipative dynamics are persistent limit-cycle oscillations and critical slowing down at the onset of such oscillations, where the syst…