In a two-parameter family of quadratic bosonic Hamiltonians from a modified bosonic SSH model, topological phase transitions occur along lines of Krein collisions and topological classification holds in both stable and unstable regimes via symplectic Berry phase and index theory.
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2 Pith papers cite this work. Polarity classification is still indexing.
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quant-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Derives quantum Fisher information for simultaneous estimation of velocity and angle in gluon-fusion top-antitop production and connects estimation sensitivity to spin entanglement.
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Decoupling band topology from criticality in bosonic systems
In a two-parameter family of quadratic bosonic Hamiltonians from a modified bosonic SSH model, topological phase transitions occur along lines of Krein collisions and topological classification holds in both stable and unstable regimes via symplectic Berry phase and index theory.
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Multiparameter quantum estimation and entanglement in top--antitop quark production
Derives quantum Fisher information for simultaneous estimation of velocity and angle in gluon-fusion top-antitop production and connects estimation sensitivity to spin entanglement.