Constants

c = 299792458

Speed of light (CODATA 2018)

elementary_charge = 1.602176634e-19

Elementary charge (CODATA 2018)

ge = 2.00231930436256

g factor electron (CODATA 2018)

hbar = 1.054571817e-34

Planck’s constant (CODATA 2018)

kB = 1.380649e-23

Boltzman constant (CODATA 2018)

magic_angle = np.float64(0.9553166181245092)

Magic angle in radians

me = 9.1093837015e-31

electron mass (CODATA 2018)

mub = 9.2740100783e-24

Bohr magneton (CODATA 2018)

munuc = 5.0507837461e-27

Nuclear magneton (CODATA 2018)

u = 1.6605390666e-27

Atomic mass u (CODATA 2018)

yH1_H20 = 267515315.1

Gyromagn. ratio 1H in H20 (CODATA 2018)

ye = -176085963023.0

Electron gyromagn. ratio (CODATA 2018)