5 papers
Enhancing pair production with optimized chirped laser fields
Z. L. Li, Y. F. Chen, R. Z. Jiang +1
The optimal chirped field for enhancing electron-positron (EP) pair production is explored using a quantum kinetic approach. First, the momentum spectrum and number density of EP p…
Study of spin states in vacuum pair production via the Dirac-Heisenberg-Wigner formalism
R. Z. Jiang, Z. L. Li, Y. J. Li
A general spin-resolved momentum distribution of electron-positron pairs produced in strong external fields is derived by combining the covariant spin projection operator and the D…
Nonadiabatic quantum kinetic equations and Dirac-Heisenberg-Wigner formalism for Schwinger pair production in time-varying electric fields with multiple components
Z. L. Li, R. Z. Jiang, Y. J. Li
The nonadiabatic quantum kinetic equations and Dirac-Heisenberg-Wigner formalism for Schwinger pair production in a spatially uniform and time-varying electric field with multiple…
Electron-hole pair production in graphene for two arbitrarily polarized electric fields with a time delay
R. Z. Jiang, Z. L. Li, Y. J. Li
The momentum distributions of electron-hole (EH) pair production in graphene for two arbitrarily polarized electric fields with a time delay are investigated employing a massless q…
Nonequilibrium carrier and phonon dynamics in the ferrimagnetic semiconductor MnSiTe
Y. Yang, X. T. Chen, Z. L. Li +5
We investigate the ultrafast carrier and phonon dynamics in the ferrimagnetic semiconductor MnSiTe using time-resolved optical pump-probe spectroscopy. Our results reve…