|
123 | 123 | 2, |
124 | 124 | None, |
125 | 125 | 'ex4-exponentiated-operators'), |
126 | | - ('The next lecture', 2, None, 'the-next-lecture')]} |
| 126 | + ('Ex5: Reduced density operators I', |
| 127 | + 2, |
| 128 | + None, |
| 129 | + 'ex5-reduced-density-operators-i'), |
| 130 | + ('Ex6: Reduced density operators II', |
| 131 | + 2, |
| 132 | + None, |
| 133 | + 'ex6-reduced-density-operators-ii'), |
| 134 | + ('The next lecture, February 5, 2025', |
| 135 | + 2, |
| 136 | + None, |
| 137 | + 'the-next-lecture-february-5-2025')]} |
127 | 138 | end of tocinfo --> |
128 | 139 |
|
129 | 140 | <body> |
|
209 | 220 | <!-- navigation toc: --> <li><a href="#ex2-hadamard-and-phase-gates" style="font-size: 80%;">Ex2: Hadamard and Phase gates</a></li> |
210 | 221 | <!-- navigation toc: --> <li><a href="#ex3-traces-of-operators" style="font-size: 80%;">Ex3: Traces of operators</a></li> |
211 | 222 | <!-- navigation toc: --> <li><a href="#ex4-exponentiated-operators" style="font-size: 80%;">Ex4: Exponentiated operators</a></li> |
212 | | - <!-- navigation toc: --> <li><a href="#the-next-lecture" style="font-size: 80%;">The next lecture</a></li> |
| 223 | + <!-- navigation toc: --> <li><a href="#ex5-reduced-density-operators-i" style="font-size: 80%;">Ex5: Reduced density operators I</a></li> |
| 224 | + <!-- navigation toc: --> <li><a href="#ex6-reduced-density-operators-ii" style="font-size: 80%;">Ex6: Reduced density operators II</a></li> |
| 225 | + <!-- navigation toc: --> <li><a href="#the-next-lecture-february-5-2025" style="font-size: 80%;">The next lecture, February 5, 2025</a></li> |
213 | 226 |
|
214 | 227 | </ul> |
215 | 228 | </li> |
@@ -1096,11 +1109,26 @@ <h2 id="ex4-exponentiated-operators" class="anchor">Ex4: Exponentiated operators |
1096 | 1109 | <p>Does this apply to the Pauli matrices?</p> |
1097 | 1110 |
|
1098 | 1111 | <!-- !split --> |
1099 | | -<h2 id="the-next-lecture" class="anchor">The next lecture </h2> |
| 1112 | +<h2 id="ex5-reduced-density-operators-i" class="anchor">Ex5: Reduced density operators I </h2> |
| 1113 | + |
| 1114 | +<p>For each of the Bell states, find the reduced density operator/matrix for each qubit.</p> |
| 1115 | + |
| 1116 | +<!-- !split --> |
| 1117 | +<h2 id="ex6-reduced-density-operators-ii" class="anchor">Ex6: Reduced density operators II </h2> |
| 1118 | + |
| 1119 | +<p>Suppose we have a composite system which consists of systems \( A \) and |
| 1120 | +\( B \) in the state \( \vert a\rangle \otimes \vert b\rangle \), where \( \vert |
| 1121 | +a\rangle \) is a pure state of system \( A \) and \( \vert b\rangle \) is a |
| 1122 | +pure state of system \( B \). Show that the reduced density operator of |
| 1123 | +system \( A \) alone is a pure state. What about system \( B \)? |
| 1124 | +</p> |
| 1125 | + |
| 1126 | +<!-- !split --> |
| 1127 | +<h2 id="the-next-lecture-february-5-2025" class="anchor">The next lecture, February 5, 2025 </h2> |
1100 | 1128 |
|
1101 | 1129 | <p>In our next lecture, we will discuss</p> |
1102 | 1130 | <ol> |
1103 | | -<li> Discussion of ntropy and entanglement</li> |
| 1131 | +<li> Discussion of entropy and entanglement</li> |
1104 | 1132 | <li> Gates and circuits and how to perform operations on states</li> |
1105 | 1133 | </ol> |
1106 | 1134 | <a href="https://github.com/CompPhysics/QuantumComputingMachineLearning/blob/gh-pages/doc/Textbooks/Programming/chapter2.pdf" target="_self">Reading: Chapters 2.1-2.11 of Hundt's text</a> |
|
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