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	<id>https://qetlab.com/wiki/index.php?action=history&amp;feed=atom&amp;title=QETLAB%3AChange_log%2Fv0.9</id>
	<title>QETLAB:Change log/v0.9 - Revision history</title>
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	<updated>2026-08-05T06:36:58Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://qetlab.com/wiki/index.php?title=QETLAB:Change_log/v0.9&amp;diff=862&amp;oldid=prev</id>
		<title>Nathaniel at 18:59, 12 January 2016</title>
		<link rel="alternate" type="text/html" href="https://qetlab.com/wiki/index.php?title=QETLAB:Change_log/v0.9&amp;diff=862&amp;oldid=prev"/>
		<updated>2016-01-12T18:59:09Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 18:59, 12 January 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot;&gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[InducedMatrixNorm]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the induced p-&amp;gt;q norm of a matrix.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[InducedMatrixNorm]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the induced p-&amp;gt;q norm of a matrix.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[InducedSchattenNorm]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the induced Schatten p-&amp;gt;q norm of a superoperator.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[InducedSchattenNorm]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the induced Schatten p-&amp;gt;q norm of a superoperator.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[L1NormCoherence]]&amp;lt;/tt&amp;gt;: Computes the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;l1&lt;/del&gt;-norm of coherence of a quantum state.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[L1NormCoherence]]&amp;lt;/tt&amp;gt;: Computes the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ℓ&amp;lt;sub&amp;gt;1&amp;lt;/sub&amp;gt;&lt;/ins&gt;-norm of coherence of a quantum state.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[NonlocalGameLB]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the quantum value of a two-player non-local game.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[NonlocalGameLB]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the quantum value of a two-player non-local game.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[RandomPOVM]]&amp;lt;/tt&amp;gt;: Computes a random POVM of a specified size and with a specified number of outcomes.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;lt;tt&amp;gt;[[RandomPOVM]]&amp;lt;/tt&amp;gt;: Computes a random POVM of a specified size and with a specified number of outcomes.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Nathaniel</name></author>
	</entry>
	<entry>
		<id>https://qetlab.com/wiki/index.php?title=QETLAB:Change_log/v0.9&amp;diff=860&amp;oldid=prev</id>
		<title>Nathaniel: Created page with &quot;===New functions=== * &lt;tt&gt;BCSGameLB&lt;/tt&gt;: Computes a lower bound on the quantum value of a binary constraint system (BCS) game. * &lt;tt&gt;BCSGameValue&lt;/tt&gt;: Computes the m...&quot;</title>
		<link rel="alternate" type="text/html" href="https://qetlab.com/wiki/index.php?title=QETLAB:Change_log/v0.9&amp;diff=860&amp;oldid=prev"/>
		<updated>2016-01-12T18:57:43Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;===New functions=== * &amp;lt;tt&amp;gt;&lt;a href=&quot;/wiki/index.php?title=BCSGameLB&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;BCSGameLB (page does not exist)&quot;&gt;BCSGameLB&lt;/a&gt;&amp;lt;/tt&amp;gt;: Computes a lower bound on the quantum value of a binary constraint system (BCS) game. * &amp;lt;tt&amp;gt;&lt;a href=&quot;/BCSGameValue&quot; title=&quot;BCSGameValue&quot;&gt;BCSGameValue&lt;/a&gt;&amp;lt;/tt&amp;gt;: Computes the m...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;===New functions===&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[BCSGameLB]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the quantum value of a binary constraint system (BCS) game.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[BCSGameValue]]&amp;lt;/tt&amp;gt;: Computes the maximum value of a binary constraint system (BCS) game. In classical and no-signalling settings, the value computed is exact, but the quantum value is just an upper bound.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[InducedMatrixNorm]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the induced p-&amp;gt;q norm of a matrix.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[InducedSchattenNorm]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the induced Schatten p-&amp;gt;q norm of a superoperator.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[L1NormCoherence]]&amp;lt;/tt&amp;gt;: Computes the l1-norm of coherence of a quantum state.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[NonlocalGameLB]]&amp;lt;/tt&amp;gt;: Computes a lower bound on the quantum value of a two-player non-local game.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[RandomPOVM]]&amp;lt;/tt&amp;gt;: Computes a random POVM of a specified size and with a specified number of outcomes.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[RelEntCoherence]]&amp;lt;/tt&amp;gt;: Computes the relative entropy of coherence of a quantum state.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[RobustnessCoherence]]&amp;lt;/tt&amp;gt;: Computes the robustness of coherence of a quantum state.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[TraceDistanceCoherence]]&amp;lt;/tt&amp;gt;: Computes the trace distance of coherence of a quantum state.&lt;br /&gt;
* &amp;lt;tt&amp;gt;helpers/[[bcs_to_nonlocal]]&amp;lt;/tt&amp;gt;: Converts a description of a binary constraint system (BCS) game into a form that can be presented as a general non-local game.&lt;br /&gt;
* &amp;lt;tt&amp;gt;helpers/[[pure_to_mixed]]&amp;lt;/tt&amp;gt;: Converts a state vector or density matrix representation of a state to a density matrix.&lt;br /&gt;
&lt;br /&gt;
===Changes to existing functions===&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[Entropy]]&amp;lt;/tt&amp;gt;: Fixed a bug that would cause NaN output for some low-rank input states.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[kpNorm]]&amp;lt;/tt&amp;gt;: Can now be used as the objective function or as a constraint in a CVX optimization problem, regardless of k and p (only certain special values of k and p were supported previously).&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[kpNormDual]]&amp;lt;/tt&amp;gt;: Can now be used as the objective function or as a constraint in a CVX optimization problem, regardless of k and p (only certain special values of k and p were supported previously).&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[NonlocalGameValue]]&amp;lt;/tt&amp;gt;: Added the REPT optional input argument, which lets the user specify the number of times that the non-local game will be repeated in parallel.&lt;br /&gt;
* &amp;lt;tt&amp;gt;[[SchattenNorm]]&amp;lt;/tt&amp;gt;: Can now be used as the objective function or as a constraint in a CVX optimization problem, regardless of p (only p = 1, p = 2, and p = Inf were supported previously).&lt;/div&gt;</summary>
		<author><name>Nathaniel</name></author>
	</entry>
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