Southwest Quantum Information and Technology

Entanglement-enhanced interferometry with neutral atoms

Presenting Author: Bethany Little, Sandia National Laboratories
Contributing Author(s): Matthew Chow, Lambert Parazzoli, Jonathan Bainbridge, Grant Biedermann, Jongmin Lee, Brandon Ruzic, Constantin Brif, and Peter Schwindt

Precision measurement and inertial sensing applications have relied on neutral atoms for many years. Recent advancements in utilizing Rydberg dressing to mediate strong, tunable interactions between neutral alkali atoms suggest that neutral atoms now also provide a promising platform for quantum sensing. Members of our team have shown that entanglement can enhance the performance of an atom interferometer, since the measurement uncertainty will follow Heisenberg scaling. Following a recent demonstration of entanglement of two Cs atoms in optical dipole traps and building on expertise in atom interferometry, we report on progress toward implementation of an entanglement-enhanced atom interferometer, which has the capability to scale to many atoms in the current apparatus. We discuss the effects of various error sources on the fidelity and progress on overcoming critical experimental challenges, as we work towards making advanced quantum sensing with neutral atoms a reality. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.

(Session 6 : Sunday from 9:15am - 9:45am)