What do you mean by degeneracy in 3d cubic box ?
The particle having a particular value of energy in the excited state MAY has several different stationary states or wavefunctions. If so, these states and energy eigenvalues are said to be degenerate.
For the first excited state, three combinations of the quantum numbers (nx,ny,nz) are (2,1,1),(1,2,1),(1,1,2).
How to Calculate Total Energy of Particle in Cubic Box?
Total Energy of Particle in Cubic Box calculator uses Energy of Particle in 3D Square Box = (([hP])^2*((Energy Levels along x Direction)^2+(Energy Levels along y Direction)^2+(Energy Levels along z Direction)^2))/(8*Mass of Particle*(Length of 3D Square Box)^2) to calculate the Energy of Particle in 3D Square Box, The Total Energy of Particle in Cubic Box formula is defined as as the total energy of particle in a 3 dimensional box which is now quantised by two numbers nx, ny and nz. Energy of Particle in 3D Square Box is denoted by E symbol.
How to calculate Total Energy of Particle in Cubic Box using this online calculator? To use this online calculator for Total Energy of Particle in Cubic Box, enter Energy Levels along x Direction (n_{x}), Energy Levels along y Direction (n_{y}), Energy Levels along z Direction (n_{z}), Mass of Particle (m) & Length of 3D Square Box (l) and hit the calculate button. Here is how the Total Energy of Particle in Cubic Box calculation can be explained with given input values -> 2.9E+39 = (([hP])^2*((2)^2+(2)^2+(2)^2))/(8*9E-31*(1E-19)^2).