  In the standard cosmological picture the Universe underwent a brief period of
near-exponential expansion, known as Inflation. This provides an explanation
for structure formation through the amplification of perturbations by the rapid
expansion of the fabric of space. Although this mech- anism is theoretically
well understood, it cannot be directly observed in nature. We propose a novel
experiment combining fluid dynamics and strong magnetic field physics to
simulate cosmo- logical inflation. Our proposed system consists of two
immiscible, weakly magnetised fluids moving through a strong magnetic field in
the bore of a superconducting magnet. By precisely controlling the propagation
speed of the interface waves, we can capture the essential dynamics of
inflation- ary fluctuations: interface perturbations experience a shrinking
effective horizon and are shown to transition from oscillatory to squeezed and
frozen regimes at horizon crossing.
