Oxford team achieves first-ever ‘quadsqueezing’ quantum interaction
Experimental trapped-ion setup used to generate the family of squeezed states; the ion is confined between electrode structures and controlled using precisely tuned laser fields. Credit: David Nadlinger
Researchers at the University of Oxford have demonstrated a new type of quantum interaction using a single trapped ion. By creating and controlling increasingly complex forms of 'squeezing' – including a fourth-order effect known as quadsqueezing – the team has, for the first time, made previously unreachable quantum effects experimentally accessible. The approach also provides a new way to engineer these interactions, with potential applications in quantum simulation, sensing, and computing. Their results have been published in Nature Physics.
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