Thursday, August 22, 2019
Quantum Oscillator Problem Assignment Example | Topics and Well Written Essays - 250 words
Quantum Oscillator Problem - Assignment Example Figure 6.11 shows a plot of the 10th excited state probability density, |ÃË10|2. Mathematica has the Hermite polynomials built-in. The quantum oscillator wave functions are given in equation 6.57; these wave functions are not normalized. The à ± in these equations is ð âÅ¡ ð Å"âââ (HW Problem 6.36 and in-class work). The argument of the Hermite polynomials in equation 6.57 is listed as ââ¬Å"xâ⬠but you will want to use ð â ¢ = âËšð ⺠¼Ã° â ¥ as the argument when you are actually write down or program the Hermite polynomials. (a) Write down the (un-normalized) wave function for the 10th excited state; you can write it in terms of à ±. Also write down the energy for this state (write this energy in terms ââ and Ãâ°)? This type of which energy act on the energy eigenstates of the harmonic oscillator potential producing a un-normalized state of higher or lower energy. aà ± =1/âËÅ¡2m(~/iâËâ/âËâx à ± imÃâ°x) A=- ââ ^2 d^2/ 2mr^2d (b) Plot ÃË10 and |ÃË10|2(use u rather than x for your independent variable); your |ÃË10|2 plot should look like Figure 6.11. (c) Normalize ÃË10 (use u); Normalization the stationary wave functions are r a 1 2 2 ÃËn (x) = 2nâËÅ¡Ã⬠n! Hn (ax) eâËâ a x 2 .The diodes are available in the normalized E24 à ±1 % (BZX84-A), à ±2 % (BZX84-B) and approximately à ±5 % (BZX84-C) tolerance range. The series includes 37 breakdown voltages with nominal working voltages from 2.4Vto75 V. (d) Find the probability that the electron is in the region âËâ0.5 âⰠ¤ âËšð ⺠¼Ã° â ¥ âⰠ¤ 0.5. Use 3 significant figures for these numerical answers. (e) What is âÅ' ©Ã° ⺠¼Ã° â ¥2âÅ' ª for this excited state?
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