Wavefunctions (image) Science China Press Share Print E-Mail Caption This image shows cooper pair wavefunctions with different symmetry. On the left the sign of the wavefunction remains the same under 90o rotation while the sign reverses for the wavefunction on the right. Credit ©Science China Press Usage Restrictions None Share Print E-Mail 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.