Man and History: Python 量子運算（一二）：括量與包量

2022年12月31日星期六

Python 量子運算（一二）：括量與包量

2022/12/31

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Fig. 12.1. Bra and ket.

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代碼 12.1

# Program 12.1：Bra and ket
import matplotlib as mpl
import matplotlib.pyplot as plt

# figure setting
mpl.rcParams['text.usetex'] = True
mpl.rcParams['text.latex.preamble'] = r'\usepackage{{amsmath}}'
mpl.rcParams['font.size'] = 80
fig, ax = plt.subplots(figsize=(16, 16))

# string setting
s1_1 = r'$\langle\Psi\vert=\begin{bmatrix}a_1^*\quad a_2^*\end{bmatrix}$'
s1_2 = r'$\vert\Psi\rangle=\begin{bmatrix}a_1\\a_2\end{bmatrix}$'
s2 = r'$(1+i)^*=1-i$'
s3 = r'$\rm \langle bra\vert ket\rangle$'

# string output
ax.text(0.05, 0.75, s1_1)  # string 1
ax.text(0.60, 0.75, s1_2)
ax.text(0.05, 0.55, s2)    # string 2
ax.text(0.20, 0.15, s3, fontsize=160)  # string 3
ax.set_axis_off()

plt.savefig('/content/drive/My Drive/pqc/0012_001.png')
plt.show()