A hybrid quantum-classical method computes accurate Green's functions for the pairing model across the normal-to-superfluid transition by combining variational ground-state preparation with quantum subspace expansion for neighboring particle numbers.
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2025 2verdicts
UNVERDICTED 2representative citing papers
Constructs PT-symmetric integrable spin-1/2 Richardson-Gaudin models via complex deformations, derives the metric operator for the physical inner product, and gives exact spin dynamics in unbroken and broken PT phases.
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Quantum simulations of Green's functions for small superfluid systems
A hybrid quantum-classical method computes accurate Green's functions for the pairing model across the normal-to-superfluid transition by combining variational ground-state preparation with quantum subspace expansion for neighboring particle numbers.
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Parity-Time Symmetric Spin-1/2 Richardson-Gaudin Models
Constructs PT-symmetric integrable spin-1/2 Richardson-Gaudin models via complex deformations, derives the metric operator for the physical inner product, and gives exact spin dynamics in unbroken and broken PT phases.