Substituting the post-quench Schr¨ odinger equation,∂t|ψ ⟩ = − iHf |ψ ⟩, into the def- inition of the QGT yields Qkt = − i ( ⟨∂kψ |Hf |ψ ⟩ − ⟨∂kψ |ψ ⟩⟨Hf ⟩ )

Oﬀ-diagonal component Qkt The oﬀ-diagonal component Qkt similarly admits an operator representation

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Evolution of quantum geometric tensor of 1D periodic systems after a quench

quant-ph · 2026-01-27 · unverdicted · novelty 6.0

Post-quench dynamics of the quantum geometric tensor in 1D periodic systems are governed by initial-state geometric quantities and post-quench band properties such as Berry connection and group velocities, providing a probe for nonequilibrium phenomena.

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Evolution of quantum geometric tensor of 1D periodic systems after a quench quant-ph · 2026-01-27 · unverdicted · none · ref 2
Post-quench dynamics of the quantum geometric tensor in 1D periodic systems are governed by initial-state geometric quantities and post-quench band properties such as Berry connection and group velocities, providing a probe for nonequilibrium phenomena.

Substituting the post-quench Schr¨ odinger equation,∂t|ψ ⟩ = − iHf |ψ ⟩, into the def- inition of the QGT yields Qkt = − i ( ⟨∂kψ |Hf |ψ ⟩ − ⟨∂kψ |ψ ⟩⟨Hf ⟩ )

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