constants

A few useful physical constants

Note that energy is expressed in units of eV.

c = 299792458

[m/s] speed of light

e = 1.602e-19

[C] electron charge

epsilon0 = 8.854e-12

[F/m] vacuum permittivity

hbar = 6.582118989999999e-16

[eV*s] reduced Plank constant

pauli = x: [[0, 1], [1, 0]], y: [[0, -1j], [1j, 0]], z: [[1, 0], [0, -1]]

Pauli matrices – use the .x, .y and .z attributes

phi0 = 4.1356673328075734e-15

[V*s] magnetic quantum