In solid-state physics, this constant is sometimes written as one-quarter the product of theimpedance of free space and the conductance quantum.
In solid-state physics, this constant is sometimes written as one-quarter the product of theimpedance of free space and the conductance quantum. The first order special-relativisticperturbation to the 1s electron energy in the hydrogen atom is proportional to the square of thisconstant, and the second order perturbation is proportional to its fourth power. This constant can bewritten as the ratio of the (*) Bohr atom's electron velocity to the speed of light. It is the square of theratio of the electron charge to the Planck charge, and hence is the fundamental coupling constantcharacterizing the strength of the electromagnetic interaction. For 10 points, name this physicalconstant, which is often denoted with the Greek letter alpha, and whose reciprocal is close to 137.
In solid-state physics, this constant is sometimes written as one-quarter the product of theimpedance of free space and the conductance quantum.
fine structure constant