mod_constants Module
- Jonathan Chico
-
- 14 statements
- Source File
Physical and mathematical constants
Uses
-
- mod_datatypes
Variables
| Type | Visibility | Attributes | Name | Initial | |||
|---|---|---|---|---|---|---|---|
| real(kind=dp), | public | :: | kb_ev | = | 8.61734e-5_dp |
Boltzmann constant in eV |
|
| real(kind=dp), | public, | parameter | :: | kb | = | 0.6333659e-5_dp |
Boltzmann constant in Ry |
| real(kind=dp), | public, | parameter | :: | pi | = | 3.141592653589793e0_dp |
value of |
| real(kind=dp), | public, | parameter | :: | ryd | = | 13.6058e0_dp |
Rydbergs in eV |
| real(kind=dp), | public, | parameter | :: | cvlight | = | 274.0720442e0_dp |
Speed of light divided by the fine structure constant |
| complex(kind=dp), | public, | parameter | :: | ci | = | (0.0e0_dp, 1.0e0_dp) |
complex number 'i' |
| complex(kind=dp), | public, | parameter | :: | cone | = | (1.0e0_dp, 0.0e0_dp) |
complex number '1' |
| complex(kind=dp), | public, | parameter | :: | czero | = | (0.0e0_dp, 0.0e0_dp) |
complex number '0', usually used for initializations |
| integer, | public, | parameter | :: | nsymaxd | = | 48 |
maximal number of lattice symmetries |