Ma, RuichaoTai, Ming EricPreiss, Philipp MoritzBakr, WaseemSimon, JonathanGreiner, Markus2012-02-142011Ma, Ruichao, M. Eric Tai, Philipp Preiss, Waseem Bakr, Jonathan Simon, and Markus Greiner. 2011. Photon-Assisted tunneling in a biased strongly correlated bose gas. Physical Review Letters 107(9): 095301.1079-7114http://nrs.harvard.edu/urn-3:HUL.InstRepos:8160980We study the impact of coherently generated lattice photons on an atomic Mott insulator subjected to a uniform force. Analogous to an array of tunnel-coupled and biased quantum dots, we observe sharp, interaction-shifted photon-assisted tunneling resonances corresponding to tunneling one and two lattice sites either with or against the force and resolve multiorbital shifts of these resonances. By driving a Landau-Zener sweep across such a resonance, we realize a quantum phase transition between a paramagnet and an antiferromagnet and observe quench dynamics when the system is tuned to the critical point. Direct extensions will produce gauge fields and site-resolved spin flips, for topological physics and quantum computing.en-USquantum gasesquantum physicsJournal Article2012-02-1410.1103/PhysRevLett.107.095301