Chiral quantum optics is a growing field of research where light-matter interactions become
asymmetrically dependent on momentum and spin, offering novel control over photonic and …

Macroscopic coherence in quantum fluids allows the observation of interference effects in
their wavefunctions, and enables applications such as superconducting quantum …

Magnetic-free nonreciprocal optical devices that can prevent backscattering of signals are
essential for integrated optical information processing. The achieved nonreciprocal …

We study the frequency-resolved density response of a photon Bose-Einstein condensate
coupled to a bath of dye molecules by time-periodic driving. By monitoring the photon …

I consider the long-standing issue of the hermicity of the Dirac equation in curved spacetime
metrics. Instead of imposing hermiticity by adding ad hoc terms, I renormalize the field by a …

I found an extended duality (triality) between Dirac fermions in periodic spacetime metrics,
nonrelativistic fermions in gauge fields (eg, Harper-Hofstadter model), and in periodic scalar …