8989 2,
9090 None,
9191 'density-matrices-operators'),
92- ('Properties of density matrices',
92+ ('Properties of density matrices I ',
9393 2,
9494 None,
95- 'properties-of-density-matrices'),
96- ('Important properties of the density matrix ',
95+ 'properties-of-density-matrices-i '),
96+ ('Properties of density matrices II ',
9797 2,
9898 None,
99- 'important- properties-of-the- density-matrix '),
100- ('More on the density matrix',
99+ 'properties-of-density-matrices-ii '),
100+ ('More on the density matrix III ',
101101 2,
102102 None,
103- 'more-on-the-density-matrix'),
103+ 'more-on-the-density-matrix-iii '),
104104 ('First entanglement encounter, two qubit system',
105105 2,
106106 None,
117117 ('Examples of entanglement', 2, None, 'examples-of-entanglement'),
118118 ('Ground state of helium', 2, None, 'ground-state-of-helium'),
119119 ('Maximally entangled', 2, None, 'maximally-entangled'),
120- ('Second exercise set', 2, None, 'second-exercise-set'),
120+ ('Second exercise set, planned for Wednesday February 4',
121+ 2,
122+ None,
123+ 'second-exercise-set-planned-for-wednesday-february-4'),
121124 ('1: Traces of operators', 2, None, '1-traces-of-operators'),
122125 ('2: Exponentiated operators',
123126 2,
201204 <!-- navigation toc: --> < li > < a href ="#extending-the-expressions " style ="font-size: 80%; "> Extending the expressions</ a > </ li >
202205 <!-- navigation toc: --> < li > < a href ="#density-matrices " style ="font-size: 80%; "> Density Matrices</ a > </ li >
203206 <!-- navigation toc: --> < li > < a href ="#density-matrices-operators " style ="font-size: 80%; "> Density matrices/operators</ a > </ li >
204- <!-- navigation toc: --> < li > < a href ="#properties-of-density-matrices " style ="font-size: 80%; "> Properties of density matrices</ a > </ li >
205- <!-- navigation toc: --> < li > < a href ="#important- properties-of-the- density-matrix " style ="font-size: 80%; "> Important properties of the density matrix </ a > </ li >
206- <!-- navigation toc: --> < li > < a href ="#more-on-the-density-matrix " style ="font-size: 80%; "> More on the density matrix</ a > </ li >
207+ <!-- navigation toc: --> < li > < a href ="#properties-of-density-matrices-i " style ="font-size: 80%; "> Properties of density matrices I </ a > </ li >
208+ <!-- navigation toc: --> < li > < a href ="#properties-of-density-matrices-ii " style ="font-size: 80%; "> Properties of density matrices II </ a > </ li >
209+ <!-- navigation toc: --> < li > < a href ="#more-on-the-density-matrix-iii " style ="font-size: 80%; "> More on the density matrix III </ a > </ li >
207210 <!-- navigation toc: --> < li > < a href ="#first-entanglement-encounter-two-qubit-system " style ="font-size: 80%; "> First entanglement encounter, two qubit system</ a > </ li >
208211 <!-- navigation toc: --> < li > < a href ="#computational-basis " style ="font-size: 80%; "> Computational basis</ a > </ li >
209212 <!-- navigation toc: --> < li > < a href ="#bell-states " style ="font-size: 80%; "> Bell states</ a > </ li >
217220 <!-- navigation toc: --> < li > < a href ="#examples-of-entanglement " style ="font-size: 80%; "> Examples of entanglement</ a > </ li >
218221 <!-- navigation toc: --> < li > < a href ="#ground-state-of-helium " style ="font-size: 80%; "> Ground state of helium</ a > </ li >
219222 <!-- navigation toc: --> < li > < a href ="#maximally-entangled " style ="font-size: 80%; "> Maximally entangled</ a > </ li >
220- <!-- navigation toc: --> < li > < a href ="#second-exercise-set " style ="font-size: 80%; "> Second exercise set</ a > </ li >
223+ <!-- navigation toc: --> < li > < a href ="#second-exercise-set-planned-for-wednesday-february-4 " style ="font-size: 80%; "> Second exercise set, planned for Wednesday February 4 </ a > </ li >
221224 <!-- navigation toc: --> < li > < a href ="#1-traces-of-operators " style ="font-size: 80%; "> 1: Traces of operators</ a > </ li >
222225 <!-- navigation toc: --> < li > < a href ="#2-exponentiated-operators " style ="font-size: 80%; "> 2: Exponentiated operators</ a > </ li >
223226 <!-- navigation toc: --> < li > < a href ="#3-reduced-density-operators-i " style ="font-size: 80%; "> 3: Reduced density operators I</ a > </ li >
@@ -279,9 +282,8 @@ <h2 id="this-week-s-plans" class="anchor">This week's plans </h2>
279282<!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
280283< ol >
281284< li > tensor products of Hilbert Spaces and definition of Computational basis, partly repetition from last week</ li >
282- < li > Reminder on spectral Decomposition from last week</ li >
283285< li > Bloch sphere and representation of qubits</ li >
284- < li > Spectral Decomposition (again) , Measurements and Density matrices</ li >
286+ < li > Spectral Decomposition, Measurements and Density matrices</ li >
285287< li > Wavefunction collapse as a result of measurement</ li >
286288< li > Entanglement and relations to density matrices
287289<!-- o Video of lecture at <a href="https://youtu.be/T7l-rciM0N0" target="_self"><tt>https://youtu.be/T7l-rciM0N0</tt></a> -->
@@ -844,7 +846,7 @@ <h2 id="density-matrices-operators" class="anchor">Density matrices/operators </
844846
845847
846848<!-- !split -->
847- < h2 id ="properties-of-density-matrices " class ="anchor "> Properties of density matrices </ h2 >
849+ < h2 id ="properties-of-density-matrices-i " class ="anchor "> Properties of density matrices I </ h2 >
848850
849851< p > A density matrix in a Hilbert space with \( n \) states has the following properties (which we state without proof)</ p >
850852< ol >
@@ -861,7 +863,7 @@ <h2 id="properties-of-density-matrices" class="anchor">Properties of density mat
861863
862864
863865<!-- !split -->
864- < h2 id ="important- properties-of-the- density-matrix " class ="anchor "> Important properties of the density matrix </ h2 >
866+ < h2 id ="properties-of-density-matrices-ii " class ="anchor "> Properties of density matrices II </ h2 >
865867< div class ="panel panel-default ">
866868< div class ="panel-body ">
867869<!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
@@ -890,7 +892,7 @@ <h2 id="important-properties-of-the-density-matrix" class="anchor">Important pro
890892
891893
892894<!-- !split -->
893- < h2 id ="more-on-the-density-matrix " class ="anchor "> More on the density matrix </ h2 >
895+ < h2 id ="more-on-the-density-matrix-iii " class ="anchor "> More on the density matrix III </ h2 >
894896< div class ="panel panel-default ">
895897< div class ="panel-body ">
896898<!-- subsequent paragraphs come in larger fonts, so start with a paragraph -->
@@ -1132,7 +1134,7 @@ <h2 id="maximally-entangled" class="anchor">Maximally entangled </h2>
11321134
11331135
11341136<!-- !split -->
1135- < h2 id ="second-exercise-set " class ="anchor "> Second exercise set </ h2 >
1137+ < h2 id ="second-exercise-set-planned-for-wednesday-february-4 " class ="anchor "> Second exercise set, planned for Wednesday February 4 </ h2 >
11361138
11371139<!-- !split -->
11381140< h2 id ="1-traces-of-operators " class ="anchor "> 1: Traces of operators </ h2 >
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