2026/06/26 by Anonymous, He-bin Zhang, Yuanjiang Tang +1
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #Atomic and Subatomic Physics Research #Crystallography and Radiation Phenomena #quant-ph
paper · pdf · doi:10.1103/jt6n-rbhq
published as Phys.Rev.A 114,013725 (2026) · 11 pages, 7 figures
openalex publication_date 2026/06/26 · openalex created_date 2026/06/27 · arxiv created 2026/07/31 · openalex updated_date 2026/08/01 · arxiv updated 2026/08/03
Isolation from environment leads to the days-long lifetime of noble-gas nuclear spins, but also brings great challenges to the preparation, manipulation, and measurement of nuclear-spin quantum states. Here we find that nuclear spin squeezing, with ultra-long lifetime and huge atomic number, can be efficiently obtained and manipulated based on the coherent spin-exchange interaction between alkali-metal and noble-gas ensembles. Thanks to the considerable advantage of our proposal in preparing the spin squeezing of the macroscopic atomic ensemble with a huge atomic number, even the nuclear spin-squeezed state containing 1020 atoms or more is obtainable with preexisting techniques. Further, the days-long storage and measurement of nuclear spin squeezing can be performed by the coherent manipulation of a magnetic field. This proposal can be implemented in hot atomic ensembles, whose ease of access and high adaptability to various environments will significantly facilitate the research and application of nuclear-spin nonclassical states in precision measurement, quantum information, and fundamental physics.