Journal
PHYSICAL REVIEW E
Volume 99, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.99.031101
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Funding
- University of Nottingham
- STFC [ST/P000703/]
- Royal Society [UF120112, RG130377, RGF/EA/180286]
- EPSRC [EP/P00637X/1]
- [A2RHS2]
- EPSRC [EP/P00637X/1] Funding Source: UKRI
- Royal Society [UF120112] Funding Source: Royal Society
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We propose an experiment combining fluid dynamics and strong magnetic field physics to simulate cosmological scenarios. Our proposed system consists of two immiscible, weakly magnetized fluids moved through a strong gradient magnetic field. The diamagnetic and paramagnetic forces thus generated amount to a time-dependent effective gravity, which allows us to precisely control the propagation speed of interface waves. Perturbations on the interface therefore experience a nonstationary effective metric. In what follows, we demonstrate that our proposed system is capable of simulating a variety of cosmological models. We then present a readily realizable experimental setup which will allow us to capture the essential dynamics of standard inflation, wherein interface perturbations experience a shrinking effective horizon and are shown to transition from oscillatory to frozen and squeezed regimes at horizon crossing.
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