Efficient pathway to NaCs ground state molecules
Abstract
We present a study of two-photon pathways for the transfer of NaCs molecules to their rovibrational ground state. Starting from NaCs Feshbach molecules, we perform bound-bound excited state spectroscopy in the wavelength range from 900 nm to 940 nm, covering more than 30 vibrational states of the c 3 Σ + , b 3 Π , and B 1 Π electronic states. Analyzing the rotational substructure, we identify the highly mixed c 3 Σ 1 + | v = 22 ⟩ ∼ b 3 Π 1 | v = 54 ⟩ state as an efficient bridge for stimulated Raman adiabatic passage. We demonstrate transfer into the NaCs ground state with an efficiency of up to 88(4)%. Highly efficient transfer is critical for the realization of many-body quantum phases of strongly dipolar NaCs molecules and high fidelity detection of single molecules, for example, in spin physics experiments in optical lattices and quantum information experiments in optical tweezer arrays.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 01, 2023
- Source ID
- 10.1088/1367-2630/acd411
Entities
People
- Aden Z. Lam
- Claire Warner
- Ian Stevenson
- Niccolò Bigagli
- Sebastian A Will
- Siwei Zhang
- Weijun Yuan
Organizations
- Alfred P. Sloan Foundation
- Columbia University
- Croucher Foundation
- Division of Physics
- Natural Sciences and Engineering Research Council
- Office of Naval Research Global