Oxford scientists achieve new type of quantum squeezing in a single ion for the first time
Physicists at the University of Oxford have successfully demonstrated fourth-order quantum squeezing (quad-squeezing), a complex state of quantum harmonic oscillators, using a single ion for the first time. This achievement is a significant step in advancing quantum sensors and computing technologies. This is reported by Ixbt.com .
Quantum squeezing is a process of reducing the uncertainty of one variable at the expense of another, widely used in gravitational wave detectors like LIGO. Previously, scientists could only control simple squeezing, but stabilizing complex states like third- and fourth-order (trisqueezing and quad-squeezing) had been impossible due to technical challenges.
The research team solved this problem by applying two precisely tuned forces to the ion simultaneously. Based on the principle of non-commutativity in the quantum world, this method created a synergistic effect, allowing fourth-order squeezing to be achieved 100 times faster than with classical methods.
Project leader Oana Bazavan noted that this experiment is not just about creating a new quantum state, but demonstrating a way to engineer and control previously unattainable quantum interactions. This discovery will serve to create more accurate quantum simulations and highly sensitive sensors in the future.
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