This superconducting parametric amplifier can achieve quantum squeezing over much broader bandwidths than other designs, which could lead to faster and more accurate quantum measurements. Credits : Credit: Courtesy of the researchers
This superconducting parametric amplifier can achieve quantum squeezing over much broader bandwidths than other designs, which could lead to faster and more accurate quantum measurements. Credits : Credit: Courtesy of the researchers "Squeezing" noise over a broad frequency bandwidth in a quantum system could lead to faster and more accurate quantum measurements. Close A certain amount of noise is inherent in any quantum system. For instance, when researchers want to read information from a quantum computer , which harnesses quantum mechanical phenomena to solve certain problems too complex for classical computers, the same quantum mechanics also imparts a minimum level of unavoidable error that limits the accuracy of the measurements. Scientists can effectively get around this limitation by using "parametric" amplification to "squeeze" the noise - a quantum phenomenon that decreases the noise affecting one variable while increasing the noise that affects its conjugate partner. While the total amount of noise remains the same, it is effectively redistributed. Researchers can then make more accurate measurements by looking only at the lower-noise variable.
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