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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Pair tunneling from dipolar interactions in a double-well Bose-Hubbard model induces ground-state parity modulations, qualitatively alters quantum phase transitions to NOON states, shifts critical points, and modifies macroscopic quantum self-trapping conditions.
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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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Equilibrium and dynamical quantum phase transitions in dipolar atomic Josephson junctions
Pair tunneling from dipolar interactions in a double-well Bose-Hubbard model induces ground-state parity modulations, qualitatively alters quantum phase transitions to NOON states, shifts critical points, and modifies macroscopic quantum self-trapping conditions.