A delta-kick focusing step applied to a BEC before one-axis twisting enhances spin squeezing and yields a fourfold improvement in phase sensitivity for quantum gravimetry, surpassing the SQL by a factor of ~20.
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A monolithic bow-tie cavity with finesse 5.7e4 is realized for homogeneous coupling to Sr atoms at 689 nm, projected to enable up to 28 dB spin squeezing for quantum-enhanced interferometry.
BARFI-Q integrates patch-based embedding, dual-branch temporal modeling, hierarchical fusion, adaptive block-attention residuals, and quantum feature mapping to forecast atom interferometry time-series, outperforming baselines while representing targets in circular sine-cosine space.
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Enhanced squeezing for quantum gravimetry in a Bose-Einstein condensate with focussing
A delta-kick focusing step applied to a BEC before one-axis twisting enhances spin squeezing and yields a fourfold improvement in phase sensitivity for quantum gravimetry, surpassing the SQL by a factor of ~20.
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Towards Entanglement-Enhanced Atom Interferometry Using Bow-Tie Cavities
A monolithic bow-tie cavity with finesse 5.7e4 is realized for homogeneous coupling to Sr atoms at 689 nm, projected to enable up to 28 dB spin squeezing for quantum-enhanced interferometry.
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BARFI-Q: Quantum-Enhanced Block Attention Residual Fusion Framework for Multivariate Time-Series Forecasting in Atom Interferometry
BARFI-Q integrates patch-based embedding, dual-branch temporal modeling, hierarchical fusion, adaptive block-attention residuals, and quantum feature mapping to forecast atom interferometry time-series, outperforming baselines while representing targets in circular sine-cosine space.