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Poster Session

Poster Session III

4:00 pm – 6:00 pm, Thursday June 19 Session S00 Oregon Convention Center:, Exhibit Hall E
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Dissipatively Stabilizing Cavity Rydberg Polaritons using a Photon Source

Poster 44
Presenter: Yiming Cady Feng (Stanford University)
Authors: Lukas Palm (University of Chicago, Stanford University), Bowen Li (Stanford University), Marius Jürgensen (Stanford University), Jonathan Simon (Stanford University)

In closed systems, the particle number is fixed and a particular many-body state can be prepared through traditional adiabatic state preparation schemes, as is the case for cold atomic lattice systems. However, in dissipative quantum systems – such as hybrid systems involving cavity photons and cold atoms – state preparation must follow a fundamentally different approach due to continuous particle loss. Theoretical proposals [1] have demonstrated that incompressible many-body states, such as Laughlin states, can be efficiently prepared when a many-body energy gap is combined with a non-reversible photon source. Here, we show our progress towards realizing a single photon drive using Rubidium 85 as a non-reversible cavity photon source within a Rubidium 87 experiment. We successfully implement a dual-Rb-species magneto-optical trap and present experimental results on isotope interactions, validating the feasibility of our proposed dissipative stabilization scheme. Through numerical simulations, we analyze the fidelity of this single-photon drive for different possible driving schemes. Our scheme, combined with the incompressibility of Laughlin states, will allow for dissipatively stabilized state preparation expanding on the work of superconducting systems [2], and creates the possibility for controllable and robust preparation of topologically ordered quantum states in photonic quantum matter.

[1] Umucalılar, Rifat Onur, Jonathan Simon and Iacopo Carusotto. “Autonomous stabilization of photonic Laughlin states through angular momentum potentials.” Physical Review A (2021)

[2] Ma, Ruichao, Brendan Saxberg, Clai Owens, Nelson Leung, Yao Lu, Jonathan Simon and David I. Schuster. “A dissipatively stabilized Mott insulator of photons.” Nature 566 (2018)

Funding acknowledgement

Air Force Office of Scientific Research, Multidisciplinary Research Program of the University Research Initiative. (FA9550-19-1-0399)

POSTERS (141)