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Researchers Simulate Josephson Effect Using Bose-Einstein Condensates

12/13/2025

Summary

Story summary

Researchers at RPTU University of Kaiserslautern-Landau simulated the Josephson effect with Bose-Einstein condensates, revealing Shapiro steps in an atomic system.
Lead researcher Herwig Ott of RPTU University of Kaiserslautern-Landau says the work bridges electronic and atomic quantum worlds.
Two Bose-Einstein condensates were separated by a thin optical barrier and the barrier's movement produced quantized voltage plateaus.
The findings were published in Science.

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Story summary

Researchers at RPTU University of Kaiserslautern-Landau simulated the Josephson effect with Bose-Einstein condensates, revealing Shapiro steps in an atomic system.
Lead researcher Herwig Ott of RPTU University of Kaiserslautern-Landau says the work bridges electronic and atomic quantum worlds.
Two Bose-Einstein condensates were separated by a thin optical barrier and the barrier's movement produced quantized voltage plateaus.
The findings were published in Science.