Supported by the National Natural Science Foundation of China under Grant Nos.19874075 and 59871059.
The longitudinal velocity Vl and shear velocity Vs of ultrasonic wave propagated along arbitrary three perpendicular directions of the Zr_(41.2)Ti_(13.8)Cu_(12.5)Ni_(10.0)Be_(22.5) bulk metallic glass(Zr/Ti BMG)have b...
Supported by the Chinese Postdoctoral Science Founditiou and Nartioual Natural Science Foundation of China.
A degenerate four-wave mixing experiment with the solutions of some dyes has been performed using 10ns pulses at 530 nm.Large resonant and off-reson ant third order hyperpnlar isabilities were obtained.
This note shows that the nontrivial third order cohomology cycle for gauge group implies the existence of anomalous associative law and consequently anomaly for Jacobi identity.