Propelling force from asymmetrically excited quantum vacuum with conventional mirrors

Abstract

Investigations show that a time-varying $\delta -{\delta }^{\prime }$ mirror gives rise to asymmetrical vacuum radiation on its two sides, enabling one to extract propelling forces from the vacuum fluctuation. In this work, we propose a design of Casimir device to gain propulsions out of vacuum with conventional $\delta$ mirrors. We call this device a ``vacuum propellion'', which is experimentally feasible. It consists of a cavity made up of a perfectly reflective left mirror and a right mirror with time dependent transparency. All particles generated from this propellion are preferentially right-moving, so the cavity obtains a left-pointing propelling force.

15 pages,3 figures. To match the published version. Comments are welcome!

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