4 papers
The trace of field equations for higher-derivative gravity and an equality associating the Lagrangian density with a divergence term
Jun-Jin Peng, Hua Li
We figure out the explicit expression for the trace of the field equations associated to generic higher derivative theories of gravity endowed with Lagrangians depending upon the m…
Terahertz semiconductor laser chaos
Binbin Liu, Carlo Silvestri, Kang Zhou +12
Chaos characterized by its irregularity and high sensitivity to initial conditions finds various applications in secure optical communications, random number generations, light det…
Farey tree locking of terahertz semiconductor laser frequency combs
Guibin Liu, Xuhong Ma, Kang Zhou +12
Frequency combs show various applications in molecular fingerprinting, imaging, communications, and so on. In the terahertz frequency range, semiconductor-based quantum cascade las…
Field equations and Noether potentials for higher-order theories of gravity with Lagrangians involving , and
Jun-Jin Peng, Hua Li
In this paper, we aim to perform a systematical investigation on the field equations and Noether potentials for the higher-order gravity theories endowed with Lagrangians depending…