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Analog cosmology with two-fluid systems in a strong gradient magnetic field

Fifer, Zack; Torres, Theo; Erne, Sebastian; Avgoustidis, Anastasios; Hill, Richard J. A.; Weinfurtner, Silke

Authors

Zack Fifer

Theo Torres

Sebastian Erne

Anastasios Avgoustidis

Richard J. A. Hill

Silke Weinfurtner



Abstract

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.

Journal Article Type Article
Publication Date Mar 27, 2019
Journal Physical Review E
Print ISSN 2470-0045
Electronic ISSN 2470-0053
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 99
Issue 3
Article Number 031101(R)
APA6 Citation Fifer, Z., Torres, T., Erne, S., Avgoustidis, A., Hill, R. J. A., & Weinfurtner, S. (2019). Analog cosmology with two-fluid systems in a strong gradient magnetic field. Physical Review E, 99(3), https://doi.org/10.1103/physreve.99.031101
DOI https://doi.org/10.1103/physreve.99.031101
Publisher URL https://journals.aps.org/pre/abstract/10.1103/PhysRevE.99.031101

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