I'm calculating the band-to-band probability using the WKB approximation given by T=exp(-4*lamda*sqrt(2*m*Eg^1.5)/(3*q*hbar*(deltaPhi+Eg))). I am wondering which unit of the plank constant is used here? The one in J-s which is 6.62e-34 or in eV-s which is 4.13e-15? However, the former one results in 0 and the latter gives 1, and the change of lamda (the relevant length scale) or deltaPhi or Eg doesn't really make an impact on the probability. Why is this?(adsbygoogle = window.adsbygoogle || []).push({});

Many thanks!

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Unit of plank constant in the calculation of tunneling probability

Loading...

Similar Threads - Unit plank constant | Date |
---|---|

I What are the units for the Heisenberg Uncertainty Principle? | Jun 5, 2017 |

I Hamiltonian for spin-1/2 particle in B-field: units issue | Apr 27, 2017 |

I Cgs or SI in quantum field theory? | Mar 9, 2017 |

I The units for Planks Constant and the Uncertainty Principle | Feb 10, 2017 |

B How close are we to uniting gravity and QM | Feb 1, 2017 |

**Physics Forums - The Fusion of Science and Community**