%0 Generic %1 earnest2017realization %A Earnest, Nathan %A Chakram, Srivatsan %A Lu, Yao %A Irons, Nicholas %A Naik, Ravi K. %A Leung, Nelson %A Lawrence, Jay %A Koch, Jens %A Schuster, David I. %D 2017 %K QED %T Realization of a $Łambda$ system with metastable states of a capacitively-shunted fluxonium %U http://arxiv.org/abs/1707.00656 %X We realize a $Łambda$ system in a superconducting circuit, with metastable states exhibiting lifetimes up to 7ms. We exponentially suppress the tunneling matrix elements involved in spontaneous energy relaxation by creating a "heavy" fluxonium, realized by adding a capacitive shunt to the original circuit design. The device allows for both cavity-assisted and direct fluorescent readout, as well as state preparation schemes akin to optical pumping. Since direct transitions between the metastable states are strongly suppressed, we utilize Raman transitions for coherent manipulation of the states.

@misc{earnest2017realization, abstract = {We realize a $\Lambda$ system in a superconducting circuit, with metastable states exhibiting lifetimes up to 7ms. We exponentially suppress the tunneling matrix elements involved in spontaneous energy relaxation by creating a "heavy" fluxonium, realized by adding a capacitive shunt to the original circuit design. The device allows for both cavity-assisted and direct fluorescent readout, as well as state preparation schemes akin to optical pumping. Since direct transitions between the metastable states are strongly suppressed, we utilize Raman transitions for coherent manipulation of the states.}, added-at = {2017-07-04T14:52:24.000+0200}, author = {Earnest, Nathan and Chakram, Srivatsan and Lu, Yao and Irons, Nicholas and Naik, Ravi K. and Leung, Nelson and Lawrence, Jay and Koch, Jens and Schuster, David I.}, biburl = {https://www.bibsonomy.org/bibtex/2dddb59e674987d20c4da06b5288db84e/sahand}, interhash = {0e2e1773b98256002c2f6a43444d9d12}, intrahash = {dddb59e674987d20c4da06b5288db84e}, keywords = {QED}, note = {cite arxiv:1707.00656Comment: Total of 10 pages. 5 pages in main tex, and 5 in supplement. Total of 9 figures in entire document}, timestamp = {2017-07-04T14:52:24.000+0200}, title = {Realization of a $\Lambda$ system with metastable states of a capacitively-shunted fluxonium}, url = {http://arxiv.org/abs/1707.00656}, year = 2017 }