When a magnetic field is applied to an electron, it begins to undergo cyclotron orbits due to the Lorentz force; this gives rise to exotic physics like the (quantum) Hall effect, the Shubnikov-de Haas oscillations, and more. Photons are electrically neutral, so they do not naturally exhibit these fascinating phenomena used to characterized solid state materials. In the process of developing techniques to induce photons to behave as though they live in a magnetic field, we discovered that we could make them behave as though they are near a singularity of spatial curvature, akin to a black hole; this interplay of curvature and momentum-space topology is an extremely active area of research, and is uniquely accessible in our experiments.
Jia Ningyuan, Nathan Schine, Alexandros Georgakopoulos, Albert Ryou, Ariel Sommer, Jonathan Simon, "Photons and polaritons in a broken-time-reversal non-planar resonator" Physical Review A 97, 013802 (2018)
Clai Owens, Aman LaChapelle, Brendan Saxberg, Brandon Anderson, Ruichao Ma, Jonathan Simon, David I Schuster, "Quarter-Flux Hofstadter Lattice in Qubit-Compatible Microwave Cavity Array" arXiv:1708.01651
Albert Ryou, Jonathan Simon, "Active Cancellation of Acoustical Resonances with an FPGA FIR Filter" Review of Scientific Instruments Volume 88, 1 2017
Ruichao Ma, Clai Owens, Aman LaChapelle, David I Schuster, Jonathan Simon, "Hamiltonian tomography of photonic lattices" Physical Review A 95, 062120 2017
Nathan Schine, Albert Ryou, Andrey Gromov, Ariel Sommer, Jonathan Simon, "Synthetic Landau levels for photons" Nature 534, 671-5 2016