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A quantum dance of electrons and phonons

Published on:

31 March 2021

Primary Category:

Mesoscale and Nanoscale Physics

Paper Authors:

Robert Hussein,

Wolfgang Belzig


Key Details

Electrons tunneling between quantum dots can carry supercurrent, but some spin states block it

Coupling to a vibration mode can change the electron spin and lift current blockade

This predicts a triple-point between different ground states in the current

The ground state transitions are visible in the critical current

They persist up to experimentally relevant temperatures

AI generated summary

A quantum dance of electrons and phonons

This paper investigates how electrons can couple to vibrations in a nanoscale circuit made of carbon nanotubes placed between superconductors. It shows how this interaction allows transitions between quantum states that carry or block electrical current, which could enable new types of ultra-sensitive motion detectors.

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