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What is the minimum possible energy for five (non-interacting) spin -12particles of massmin a one dimensional box of length L ? What if the particles were spin-1? What if the particles were spin -32?

Short Answer

Expert verified

The resultant answer is 19Ï€2h22mL2,5Ï€2h22mL2 and role="math" localid="1660058890264" 8Ï€2h22mL2.

Step by step solution

01

Given spin

The given data is spin -12, spin -1, spin -32.

02

Concept of Electron dipole moment

The electron electric dipole moment (EDM)deis an intrinsic property of an electron such that the potential energy is linearly related to the strength of the electric field.

The electron's EDM must be collinear with the direction of the electron's magnetic moment (spin).

03

Calculate the energy

Adding energies for the spin -1/2 for five non interacting particles in one dimensional box from the above table gives.

role="math" localid="1660059135505" Eint=2Ï€2h22mL2+24Ï€2h22mL2+9Ï€2h22mL2Eint=19Ï€2h22mL2

For the spin-1 case, the particles are bosons and the minimum possible energy for five bosons from the above table is Eint=5Ï€2h22mL2.

For the spin -32case, there are up to 2S+1=4different particles, each with different spin orientation.

So, the minimum possible energy for five fermions from the above table is shown below.

Eint=4Ï€2h22mL2+14Ï€2h22mL2Eint=8Ï€2h22mL2

Hence, The resultant answer is19Ï€2h22mL2,5Ï€2h22mL2and8Ï€2h22mL2.

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