Squeezing Light Diagram (IMAGE) St. John's College, University of Cambridge Caption The left diagram represents electromagnetic activity associated with light at its lowest possible level, according to the laws of classical physics. On the right, part of the field has been reduced to lower than is technically possible, at the expense of making another part of the field less measurable. This effect is called "squeezing" because of the shape it produces. Credit Mete Atature Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.