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	<title>Tobias J. Osborne&#039;s research notes</title>
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	<description>An open science weblog focussed on quantum information theory, condensed matter physics, and mathematical physics</description>
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		<title>Tobias J. Osborne&#039;s research notes</title>
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		<title>Guest post on Bohmian Mechanics, by Reinhard F. Werner</title>
		<link>http://tjoresearchnotes.wordpress.com/2013/05/13/guest-post-on-bohmian-mechanics-by-reinhard-f-werner/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2013/05/13/guest-post-on-bohmian-mechanics-by-reinhard-f-werner/#comments</comments>
		<pubDate>Mon, 13 May 2013 19:59:17 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[guest post]]></category>
		<category><![CDATA[Bohmian mechanics]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=575</guid>
		<description><![CDATA[I went to a conference at the end of April in Bielefeld, entitled &#8220;Quantum Mechanics without observers III&#8221;, which was the meeting of a European network devoted to the Foundations of Quantum Mechanics. The network has a high percentage of members of the Neo-Bohmian school, so I was a bit of an outside observer, coming mainly [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=575&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>48</slash:comments>
	
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		<item>
		<title>I&#8217;m back</title>
		<link>http://tjoresearchnotes.wordpress.com/2013/05/13/im-back/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2013/05/13/im-back/#comments</comments>
		<pubDate>Mon, 13 May 2013 19:34:43 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[soft post]]></category>
		<category><![CDATA[weblog administration]]></category>
		<category><![CDATA[social media]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=572</guid>
		<description><![CDATA[This blog and my twitter account have been very quiet for the past year. This time it wasn&#8217;t entirely due to laziness or a lack of motivation. Instead, as an experiment, I gave up all forms of social networking and online news: I stopped reading all blogs, I uninstalled the twitter and facebook apps, I [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=572&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>5</slash:comments>
	
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		<title>Is quantum mechanics an effective theory?</title>
		<link>http://tjoresearchnotes.wordpress.com/2012/05/16/is-quantum-mechanics-an-effective-theory/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2012/05/16/is-quantum-mechanics-an-effective-theory/#comments</comments>
		<pubDate>Wed, 16 May 2012 07:15:31 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[concentration of measure]]></category>
		<category><![CDATA[Dvoretzky's theorem]]></category>
		<category><![CDATA[generalised probabilistic theories]]></category>
		<category><![CDATA[quantum mechanics]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=568</guid>
		<description><![CDATA[What is the ultimate theory governing Nature? All evidence to date strongly suggests that quantum mechanics (QM) is this theory. However, it could still be that QM is simply a really good effective theory which breaks down if we are able to perform experiments with sufficiently high energy and precision. If this is the case, [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=568&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>2</slash:comments>
	
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		<title>We&#8217;re on GitHub!</title>
		<link>http://tjoresearchnotes.wordpress.com/2012/05/15/were-on-github/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2012/05/15/were-on-github/#comments</comments>
		<pubDate>Tue, 15 May 2012 15:17:12 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[quantum spin systems]]></category>
		<category><![CDATA[GitHub]]></category>
		<category><![CDATA[numerical methods]]></category>
		<category><![CDATA[open sci]]></category>
		<category><![CDATA[social coding]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=564</guid>
		<description><![CDATA[The open science movement seems to be picking up steam these days thanks, in no small part, to Michael Nielsen&#8217;s &#8220;Reinventing Discovery&#8220;. Complementary to this has been an increasing clamor for scientists to open up and release the computer codes involved in scientific papers. This is an issue I feel strongly about: it is rather [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=564&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<title>Four positions in the quantum information group, Hannover</title>
		<link>http://tjoresearchnotes.wordpress.com/2012/05/01/four-positions-in-the-quantum-information-group-hannover/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2012/05/01/four-positions-in-the-quantum-information-group-hannover/#comments</comments>
		<pubDate>Tue, 01 May 2012 05:54:31 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[job advert]]></category>
		<category><![CDATA[postdoc position]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=560</guid>
		<description><![CDATA[We would like to draw your attention to four openings in the Quantum Information Group at Hannover (RF Werner and TJ Osborne). We are looking for either postdocs or PhD students with appointments for up to three years, and will also consider shorter term flexible appointments. Late applications will be considered until positions are filled. [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=560&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>1</slash:comments>
	
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		<title>Postdoc opportunity</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/08/01/postdoc-opportunity/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/08/01/postdoc-opportunity/#comments</comments>
		<pubDate>Mon, 01 Aug 2011 18:55:19 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[job advert]]></category>
		<category><![CDATA[postdoc position]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=554</guid>
		<description><![CDATA[I&#8217;d like to take this opportunity to announce a new postdoc opportunity. This three-year position is part of a challenging interdisciplinary european project aimed at applying ideas and techniques developed within quantum information theory, such as quantum entanglement, to the study of strongly interacting quantum fields. I&#8217;ve mentioned some of these ideas in previous posts, [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=554&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>1</slash:comments>
	
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		<title>The next big thing?</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/07/10/the-next-big-thing/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/07/10/the-next-big-thing/#comments</comments>
		<pubDate>Sun, 10 Jul 2011 10:35:11 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[soft post]]></category>
		<category><![CDATA[speculative ideas]]></category>
		<category><![CDATA[classical physics]]></category>
		<category><![CDATA[complex quantum systems]]></category>
		<category><![CDATA[predictions]]></category>
		<category><![CDATA[quantum information theory]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=550</guid>
		<description><![CDATA[Quantum information theory has evolved in fascinating ways over the past two decades or so and I&#8217;ve been privileged to directly witness its development for ten of these years. In this post, I thought I&#8217;d have a go at predicting where it will go, and what the &#8220;next big thing&#8221; for quantum information theory will [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=550&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>4</slash:comments>
	
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		<title>The variational principle in quantum mechanics, lecture 12</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/07/07/the-variational-principle-in-quantum-mechanics-lecture-12/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/07/07/the-variational-principle-in-quantum-mechanics-lecture-12/#comments</comments>
		<pubDate>Thu, 07 Jul 2011 18:36:40 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[dissipative dynamics]]></category>
		<category><![CDATA[monotone metrics]]></category>
		<category><![CDATA[time-dependent variational principle]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=542</guid>
		<description><![CDATA[1. Lecture 12: the time-dependent variational principle for dissipative dynamics The time-dependent variational principle of Dirac is a powerful method to simulate the real and imaginary time dynamics of strongly correlated quantum systems. The original formulation has, as far as I can tell, only been formulated in the case of pure states. The generalisation to [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=542&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>2</slash:comments>
	
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		<title>The variational principle in quantum mechanics, lecture 11</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/07/01/the-variational-principle-in-quantum-mechanics-lecture-11/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/07/01/the-variational-principle-in-quantum-mechanics-lecture-11/#comments</comments>
		<pubDate>Fri, 01 Jul 2011 12:11:25 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[Gross-Pitaevskii equation]]></category>
		<category><![CDATA[mean-field theory]]></category>
		<category><![CDATA[time-dependent variational principle]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=534</guid>
		<description><![CDATA[1. Lecture 11: the time-dependent variational principle and mean-field theory In this and the following lectures we are going to apply the time-dependent variation principle (TDVP) to the variational classes we have met previously, namely, product states for quantum spin systems, mean-field states for bosons and fermions, and matrix product states. The pdf version of [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=534&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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		<title>The variational principle in quantum mechanics, lectures 9 and 10</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/06/23/the-variational-principle-in-quantum-mechanics-lectures-9-and-10/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/06/23/the-variational-principle-in-quantum-mechanics-lectures-9-and-10/#comments</comments>
		<pubDate>Thu, 23 Jun 2011 11:48:10 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[Uncategorized]]></category>
		<category><![CDATA[time-dependent variational principle]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=516</guid>
		<description><![CDATA[In lecture 9 we continued reading the papers on matrix product states that we began in lectures 7 and 8. 1. Lecture 10: the time-dependent variational principle In this lecture we will discuss the time-dependent variation principle (TDVP), which is a powerful method to simulate the nonequilibrium dynamics of a general quantum system while remaining [&#8230;]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&#038;blog=6395634&#038;post=516&#038;subd=tjoresearchnotes&#038;ref=&#038;feed=1" width="1" height="1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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