Abstract
We 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.
Original language | English (US) |
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Article number | 095301 |
Journal | Physical review letters |
Volume | 107 |
Issue number | 9 |
DOIs | |
State | Published - Aug 23 2011 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)