Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom

Details Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom

2009-12-17

arxiv.org/abs/0912.3291v3

Phys. Rev. Lett. 104, 163601 (2010)

Physics

Quantum Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.104.163601

The phenomenon of Coherent Population Trapping (CPT) of an atom (or solid state "artificial atom"), and the associated effect of Electromagnetically Induced Transparency (EIT), are clear demonstrations of quantum interference due to coherence in multi-level quantum systems. We report observation of CPT in a superconducting phase qubit by simultaneously driving two coherent transitions in a $\Lambda$-type configuration, utilizing the three lowest lying levels of a local minimum of a phase qubit. We observe $60(\pm 7)%$ suppression of excited state population under conditions of CPT resonance. We present data and matching theoretical simulations showing the development of CPT in time. Finally, we used the observed time dependence of the excited state population to characterize quantum dephasing times of the system.

Affiliated with

Also associated with

No associations

Rating

Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-348558