Poster Session

Poster Session I (4pm-6pm CDT)

4:00 pm – 6:00 pm, Tuesday June 4 // Session D00

Topics:

A Long Range Interacting Erbium Hubbard Quantum Simulator

Poster 116

Presenter: Alexander M Douglas (Harvard University)

Authors: Lin Su (Harvard University), Michal Szurek (Harvard University), Vikram Singh (Harvard University), Vassilios Kaxiras (Harvard University), Rahul Sahay (Harvard University), Ceren Dag (ITAMP, Harvard University), Symeon Mystakidis (ITAMP, Harvard University), Ruben Verresen (Harvard University and Massachusetts Institute of Technology), Oriol Bigorda (Harvard University), Stefan Ostermann (Department of Physics, Harvard University), Ashvin Vishwanath (Harvard University), Susanne Yelin (Harvard University), Markus Greiner (Harvard University)

Long-range interactions play an important role in nature; however, quantum simulations of lattice systems have largely not been able to realize such interactions. We report on recent developments of our Erbium dipolar quantum gas microscope. Our 266 nm lattice spacing magnifies various long range interactions, specifically magnetic dipole interactions, as well as optical near field effects. We recently resolved dipolar quantum solids at half filling generated by the magnetic dipole interaction. Adding finite onsite interaction would, at unity filling, allow for preparation of a topological Haldane insulator. We explore the properties of various magnetic Fano-Feschbach resonances to operate in the soft-core extended Hubbard model. In addition, our deeply sub-wavelength lattice allows for super and sub radiance on our 841 nm transition. Combined with our tunable spacing accordion lattice we are able to explore the radiance phase diagram of extended optical emitter arrays with single site resolution. This work demonstrates that novel strongly correlated quantum phases and dynamics can be studied using dipolar interaction in optical lattices, opening the door to quantum simulations of a wide range of lattice models with long-range interactions.

Funding acknowledgement

We are supported by U.S. Department of Energy Quantum Systems Accelerator DE-AC02-05CH11231, National Science Foundation Center for Ultracold Atoms PHY-1734011, Army Research Office Defense University Research Instrumentation Program W911NF2010104, Office of Naval Research Vannevar Bush Faculty Fellowship N00014-18-1-2863, and Defense Advanced Research Projects Agency Optimization with Noisy Intermediate-Scale Quantum devices W911NF-20-1-0021. A.D. acknowledges support from the NSF Graduate Research Fellowship Program (grant DGE2140743)

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