Broadband Lamb shift in an engineered quantum system.

ABSTRACT: The shift of the energy levels of a quantum system owing to broadband electromagnetic vacuum fluctuations-the Lamb shift-has been central for the development of quantum electrodynamics and for the understanding of atomic spectra^1-6. Identifying the origin of small energy shifts is still important for engineered quantum systems, in light of the extreme precision required for applications such as quantum computing^7,8. However, it is challenging to resolve the Lamb shift in its original broadband case in the absence of a tuneable environment. Consequently, previous observations^1-5,9 in non-atomic systems are limited to environments comprising narrowband modes^10-12. Here, we observe a broadband Lamb shift in high-quality superconducting resonators, a

SUBMITTER: Silveri M 

PROVIDER: S-EPMC11938831 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature