2026-10-07T19:10:32Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34028130 2026-09-29T23:20:33Z category_30235 category_30241 category_25267 item_type_12 month_year_09_2026

Prospects for detecting entanglement-induced modifications of the atomic light shift with twin atom interferometers Elvio david Benítez cañete (25077997) Quantum optics and quantum optomechanics Quantum physics not elsewhere classified Theoretical quantum chemistry quantum entanglement features Atom Interferometry <p dir="ltr">We investigate whether engineered quantum correlations in the electromagnetic field (two-mode entangled or squeezed states) can modify the effective potential experienced by a matter wave beyond the dependence on mean intensity. Through adiabatic elimination of the atom–field Hamiltonian we show that, to second order in the dispersive regime, the light shift depends only on the mean photon number. Residual contributions that involve anomalous correlators appear at higher order or when counter-rotating terms and multi-level structure are retained. With cavity parameters currently compatible with atom interferometry these residual terms yield phases of order 10^{-11}–10^{-10} rad or smaller, below practical detection thresholds. We identify the technological advances (stronger atom–cavity coupling with clean spatial modes, scattering control, and phase metrology at the 10^{-9} rad level) that could render the effect measurable. A twin-atom-interferometer architecture is proposed as the natural platform once those advances are realized. The proposal is falsifiable and provides a clear technological roadmap. No claim of near-term experimental realisation is made.</p> 2026-09-29T23:20:33Z Text Preprint 10.6084/m9.figshare.34028130.v1 https://figshare.com/articles/preprint/Prospects_for_detecting_entanglement-induced_modifications_of_the_atomic_light_shift_with_twin_atom_interferometers/34028130 CC BY 4.0