Second-scale nuclear spin coherence time of ultracold 23Na40K molecules
SCIE
SCOPUS
- Title
- Second-scale nuclear spin coherence time of ultracold 23Na40K molecules
- Authors
- Park, Jee Woo; Yan, Zoe Z.; Loh, Huanqian; Will, Sebastian A.; Zwierlein, Martin W.
- Date Issued
- 2017-07
- Publisher
- American Association for the Advancement of Science
- Abstract
- Coherence, the stability of the relative phase between quantum states, is central to quantum mechanics and its applications. For ultracold dipolar molecules at sub-microkelvin temperatures, internal states with robust coherence are predicted to offer rich prospects for quantum many-body physics and quantum information processing. We report the observation of stable coherence between nuclear spin states of ultracold fermionic sodium-potassium (NaK) molecules in the singlet rovibrational ground state. Ramsey spectroscopy reveals coherence times on the scale of 1 second; this enables high-resolution spectroscopy of the molecular gas. Collisional shifts are shown to be absent down to the 100-millihertz level. This work opens the door to the use of molecules as a versatile quantum memory and for precision measurements on dipolar quantum matter.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/103525
- DOI
- 10.1126/science.aal5066
- ISSN
- 0036-8075
- Article Type
- Article
- Citation
- Science, vol. 357, no. 6349, 2017-07
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