A Z2 topological invariant is defined via quantization of the spin-Chern-Simons action for 3D PT- and PC-symmetric class CI band structures.
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Momentum-space entanglement entropy reaches ln 2 at DQPTs via exact degeneracy p=1/2 in the post-quench eigenbasis, providing a time-independent diagnostic.
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$\mathbb{Z}_2$ topological invariant in three-dimensional PT- and PC-symmetric class CI band structures
A Z2 topological invariant is defined via quantization of the spin-Chern-Simons action for 3D PT- and PC-symmetric class CI band structures.
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Critical Entanglement Dynamics at Dynamical Quantum Phase Transitions
Momentum-space entanglement entropy reaches ln 2 at DQPTs via exact degeneracy p=1/2 in the post-quench eigenbasis, providing a time-independent diagnostic.