<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	xmlns:georss="http://www.georss.org/georss" xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#" xmlns:media="http://search.yahoo.com/mrss/"
	>

<channel>
	<title>Tobias J. Osborne&#039;s research notes</title>
	<atom:link href="http://tjoresearchnotes.wordpress.com/feed/" rel="self" type="application/rss+xml" />
	<link>http://tjoresearchnotes.wordpress.com</link>
	<description>An open science weblog focussed on quantum information theory, condensed matter physics, and mathematical physics</description>
	<lastBuildDate>Sat, 07 Jan 2012 11:24:00 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.com/</generator>
<cloud domain='tjoresearchnotes.wordpress.com' port='80' path='/?rsscloud=notify' registerProcedure='' protocol='http-post' />
<image>
		<url>http://s2.wp.com/i/buttonw-com.png</url>
		<title>Tobias J. Osborne&#039;s research notes</title>
		<link>http://tjoresearchnotes.wordpress.com</link>
	</image>
	<atom:link rel="search" type="application/opensearchdescription+xml" href="http://tjoresearchnotes.wordpress.com/osd.xml" title="Tobias J. Osborne&#039;s research notes" />
	<atom:link rel='hub' href='http://tjoresearchnotes.wordpress.com/?pushpress=hub'/>
		<item>
		<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, [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=554&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/08/01/postdoc-opportunity/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<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 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=550&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/07/10/the-next-big-thing/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<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 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=542&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/07/07/the-variational-principle-in-quantum-mechanics-lecture-12/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<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 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=534&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/07/01/the-variational-principle-in-quantum-mechanics-lecture-11/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<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 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=516&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/06/23/the-variational-principle-in-quantum-mechanics-lectures-9-and-10/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<title>Antrittsvorlesung</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/06/09/antrittsvorlesung/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/06/09/antrittsvorlesung/#comments</comments>
		<pubDate>Thu, 09 Jun 2011 09:19:05 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[talks]]></category>
		<category><![CDATA[information]]></category>
		<category><![CDATA[lectures]]></category>
		<category><![CDATA[scale]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=508</guid>
		<description><![CDATA[On Tuesday June 7th I gave my Antrittsvorlesung (= inaugural lecture) entitled &#8220;Größenverhältnisse und Information&#8221; (= &#8220;Scale and information&#8221;). You can find the slides here. The german text of the lecture can be found here and the english text here.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=508&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/06/09/antrittsvorlesung/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<title>The variational principle in quantum mechanics, lecture 7 and 8</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/06/02/the-variational-principle-in-quantum-mechanics-lecture-7-and-8/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/06/02/the-variational-principle-in-quantum-mechanics-lecture-7-and-8/#comments</comments>
		<pubDate>Thu, 02 Jun 2011 04:40:43 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[matrix product states]]></category>
		<category><![CDATA[quantum spin systems]]></category>
		<category><![CDATA[Schmidt decomposition]]></category>
		<category><![CDATA[variational principle]]></category>

		<guid isPermaLink="false">https://tjoresearchnotes.wordpress.com/2011/06/02/the-variational-principle-in-quantum-mechanics-lecture-7-and-8/</guid>
		<description><![CDATA[In lectures 7 and 8 we will discuss the papers: &#8220;Efficient classical simulation of slightly entangled quantum computations&#8221;, found here and &#8220;Efficient simulation of one-dimensional quantum many-body systems&#8221; found here by Guifre Vidal.<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=505&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/06/02/the-variational-principle-in-quantum-mechanics-lecture-7-and-8/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<title>The variational principle in quantum mechanics, lecture 6</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/05/18/the-variational-principle-in-quantum-mechanics-lecture-6/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/05/18/the-variational-principle-in-quantum-mechanics-lecture-6/#comments</comments>
		<pubDate>Wed, 18 May 2011 20:22:27 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[density functional theory]]></category>
		<category><![CDATA[fermions]]></category>
		<category><![CDATA[many particle systems]]></category>
		<category><![CDATA[variational principle]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=500</guid>
		<description><![CDATA[1. Lecture 6: density functional theory In the previous two lectures we discussed several examples of mean-field theory where the variational class is the class of gaussian states or single-particle product states. It turns out that mean-field theory is extremely useful in practice and can give powerful insights into the physics of many strongly interacting [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=500&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/05/18/the-variational-principle-in-quantum-mechanics-lecture-6/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<title>The variational principle in quantum mechanics, lecture 5</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/05/11/the-variational-principle-in-quantum-mechanics-lecture-5/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/05/11/the-variational-principle-in-quantum-mechanics-lecture-5/#comments</comments>
		<pubDate>Wed, 11 May 2011 13:31:58 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[bosons]]></category>
		<category><![CDATA[Gross-Pitaevskii equation]]></category>
		<category><![CDATA[mean-field theory]]></category>
		<category><![CDATA[nonlinear Schrödinger equation]]></category>
		<category><![CDATA[variational principle]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=490</guid>
		<description><![CDATA[1. Lecture 5: Mean-field theory and the Gross-Pitaevskii equation In the previous lecture we saw two applications of the variational principle to the class of product states and fermionic gaussian states, respectively. In both cases we obtained an effective equation for the ground-state properties involving only a single effective particle (a single spin in the [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=490&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/05/11/the-variational-principle-in-quantum-mechanics-lecture-5/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
		<item>
		<title>The variational principle in quantum mechanics, lecture 4</title>
		<link>http://tjoresearchnotes.wordpress.com/2011/05/05/the-variational-principle-in-quantum-mechanics-lecture-4/</link>
		<comments>http://tjoresearchnotes.wordpress.com/2011/05/05/the-variational-principle-in-quantum-mechanics-lecture-4/#comments</comments>
		<pubDate>Thu, 05 May 2011 13:10:47 +0000</pubDate>
		<dc:creator>tobiasosborne</dc:creator>
				<category><![CDATA[teaching]]></category>
		<category><![CDATA[Gaussian states]]></category>
		<category><![CDATA[Hartree-Fock theory]]></category>
		<category><![CDATA[Majorana fermions]]></category>
		<category><![CDATA[mean-field theory]]></category>
		<category><![CDATA[t-J model]]></category>
		<category><![CDATA[transverse Ising model]]></category>
		<category><![CDATA[variational principle]]></category>

		<guid isPermaLink="false">http://tjoresearchnotes.wordpress.com/?p=484</guid>
		<description><![CDATA[1. Lecture 4: Mean-field theory and Hartree-Fock theory In this lecture we&#8217;ll describe a general strategy to approximately solving the many body problem introduced in the previous lecture. This approach falls broadly under the rubric of mean-field theory and is better known, in various contexts, as Hartree-Fock theory, the self-consistent field method, and the Gutzwiller [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tjoresearchnotes.wordpress.com&amp;blog=6395634&amp;post=484&amp;subd=tjoresearchnotes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
		<wfw:commentRss>http://tjoresearchnotes.wordpress.com/2011/05/05/the-variational-principle-in-quantum-mechanics-lecture-4/feed/</wfw:commentRss>
		<slash:comments>1</slash:comments>
	
		<media:content url="" medium="image">
			<media:title type="html">tobiasosborne</media:title>
		</media:content>
	</item>
	</channel>
</rss>
