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Condensed Matter > Superconductivity
Title: Laguerre-Gaussian light induction of orbital currents and Kapitza stabilization in superconducting circuits
(Submitted on 25 Apr 2024)
Abstract: We investigate the effects of a Laguerre-Gaussian (LG) beam on the superconducting state. We show that the vortex angular momentum of a LG beam affects the superconducting state and induces currents. The induction of the current by light is illustrated on a Josephson loop and SQUID devices. In particular, we establish that coupling a dc SQUID to the AC magnetic flux of a LG beam can stabilize pi phase in the SQUID. This can happen via developing a global or local minimum in the effective potential at pi. In the latter case, this happens via the Kapitza mechanism.
Submission history
From: Hennadii Yerzhakov [view email][v1] Thu, 25 Apr 2024 01:26:18 GMT (1880kb,D)
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