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We propose an experiment to demonstrate spontaneous ordering and symmetrybreaking of kinesin-driven microtubules confined to an optical trap.Calculations involving the feasibility of such an experiment are firstperformed which analyze the power needed to confine microtubules and addressheating concerns. We then present the results of first-principles simulationsof active microtubules confined in such a trap and analyze the types of motionobserved by the microtubules as well as the velocity of the surrounding fluid,both near the trap and in the far-field. We find three distinct phasescharacterized by breaking of distinct symmetries and also analyze the powerspectrum of the angular momenta of polymers to further quantify the differencesbetween these phases. Under the correct conditions, microtubules were found tospontaneously align with one another and circle the trap in one direction.

Spontaneous Circulation of Active Microtubules Confined by Optical Traps