The distribution of complex zeros of the Loschmidt amplitude is governed by the energy envelope of the initial state, with zeros reaching the real-time axis as finite-size precursors to dynamical quantum phase transitions.
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Periodic driving induces DQPTs in the 1D Ising model via resonance within a phase (linked to Floquet topology) or low-frequency crossing of the critical point due to energy degeneracy.
Microscopic fidelity zeros in the Wen-plaquette model reconstruct equilibrium topological boundaries and suppress dynamical quantum phase transitions by enforcing momentum exclusion and depleting decaying modes.
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Tracing complex zeros of the quantum survival amplitude: How the energy distribution controls dynamical phase transitions
The distribution of complex zeros of the Loschmidt amplitude is governed by the energy envelope of the initial state, with zeros reaching the real-time axis as finite-size precursors to dynamical quantum phase transitions.
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Dynamical Phase Transitions in Periodically Driving 1D Ising Model
Periodic driving induces DQPTs in the 1D Ising model via resonance within a phase (linked to Floquet topology) or low-frequency crossing of the critical point due to energy degeneracy.
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Decoding Equilibrium and Dynamical Criticality in the 2D Topological Order
Microscopic fidelity zeros in the Wen-plaquette model reconstruct equilibrium topological boundaries and suppress dynamical quantum phase transitions by enforcing momentum exclusion and depleting decaying modes.