Closed timelike curves in superfluid 3He
Pedro F. Gonzalez-Diaz, Carmen L. Siguenza
Abstract
It is shown that the curved spacetime induced in a thin film of superfluid 3He-A by the presence of symmetric vortices with the unbroken symmetry phase, admits the existence of closed timelike curves through which only superfluid clusters formed by anti-3He atoms can travel and violate causality.
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