Symmetry class alone sets SWSSB correlation length growth to exponential (Z2, tc ~ ln L) or algebraic (U(1), tc ~ L^alpha with alpha filling-dependent) in open quantum systems, independent of spectral gap.
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A dissipative anisotropic Yao-Lee model is exactly solvable via non-Hermitian fermionic mapping, hosting a large manifold of non-equilibrium steady states and a PT symmetry breaking transition with an exceptional ring in the Liouvillian spectrum.
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Universal Dynamical Scaling of Strong-to-Weak Spontaneous Symmetry Breaking in Open Quantum Systems
Symmetry class alone sets SWSSB correlation length growth to exponential (Z2, tc ~ ln L) or algebraic (U(1), tc ~ L^alpha with alpha filling-dependent) in open quantum systems, independent of spectral gap.
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Dissipative Yao-Lee Spin-Orbital Model: Exact Solvability and $\mathcal{PT}$ Symmetry Breaking
A dissipative anisotropic Yao-Lee model is exactly solvable via non-Hermitian fermionic mapping, hosting a large manifold of non-equilibrium steady states and a PT symmetry breaking transition with an exceptional ring in the Liouvillian spectrum.