Normally forbidden emissions from graphene could expose quantum fluctuations in incoming light - Phys.org
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Voltage fluctuations, light fluctuations, temperature fluctuations—any fluctuations are troublesome and thus undesirable. They don't just cause discomfort; in engineering and medical applications, they affect the accuracy of measurements or introduce errors in controls. Even at the minute level of quantum phenomena, fluctuations are considered undesirable.
But what if some fluctuations can be made useful? A theoretical study from the Indian Institute of Technology Bombay (IIT Bombay) shows that structured quantum fluctuations in light can be used to sense and generate useful quantum optical signals.
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