<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Kouichi Okunishi | Ueda Group</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/authors/kouichi-okunishi/</link><atom:link href="http://www.ueda-group.qiqb.osaka-u.ac.jp/authors/kouichi-okunishi/index.xml" rel="self" type="application/rss+xml"/><description>Kouichi Okunishi</description><generator>HugoBlox Kit (https://hugoblox.com)</generator><language>en-us</language><lastBuildDate>Thu, 16 Oct 2025 00:00:00 +0000</lastBuildDate><item><title>Improving the accuracy of the tree-tensor network approach by optimization of network structure</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/improving-the-accuracy-of-the-tree-tensor-network-approach-by-optimization-of-network-stru/</link><pubDate>Thu, 16 Oct 2025 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/improving-the-accuracy-of-the-tree-tensor-network-approach-by-optimization-of-network-stru/</guid><description/></item><item><title>Visualization of Entanglement Geometry by Structural Optimization of Tree Tensor Network</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/visualization-of-entanglement-geometry-by-structural-optimization-of-tree-tensor-network/</link><pubDate>Mon, 29 Jan 2024 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/visualization-of-entanglement-geometry-by-structural-optimization-of-tree-tensor-network/</guid><description/></item><item><title>Entanglement bipartitioning and tree tensor networks</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/entanglement-bipartitioning-and-tree-tensor-networks/</link><pubDate>Sat, 28 Jan 2023 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/entanglement-bipartitioning-and-tree-tensor-networks/</guid><description/></item><item><title>Automatic structural optimization of tree tensor networks</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/automatic-structural-optimization-of-tree-tensor-networks/</link><pubDate>Mon, 23 Jan 2023 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/automatic-structural-optimization-of-tree-tensor-networks/</guid><description/></item><item><title>Developments in the Tensor Network — from Statistical Mechanics to Quantum Entanglement</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/tensor-network-review/</link><pubDate>Mon, 02 May 2022 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/tensor-network-review/</guid><description/></item><item><title>Corner transfer matrix renormalization group analysis of the two-dimensional dodecahedron model</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/corner-transfer-matrix-renormalization-group-analysis-of-the-two-dimensional-dodecahedron-/</link><pubDate>Fri, 18 Sep 2020 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/corner-transfer-matrix-renormalization-group-analysis-of-the-two-dimensional-dodecahedron-/</guid><description/></item><item><title>Finite- m scaling analysis of Berezinskii-Kosterlitz-Thouless phase transitions and entanglement spectrum for the six-state clock model</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/finite--m-scaling-analysis-of-berezinskii-kosterlitz-thouless-phase-transitions-and-entang/</link><pubDate>Thu, 04 Jun 2020 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/finite--m-scaling-analysis-of-berezinskii-kosterlitz-thouless-phase-transitions-and-entang/</guid><description/></item><item><title>Critical behavior of the two-dimensional icosahedron model</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/critical-behavior-of-the-two-dimensional-icosahedron-model/</link><pubDate>Fri, 01 Dec 2017 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/critical-behavior-of-the-two-dimensional-icosahedron-model/</guid><description/></item><item><title>Doubling of entanglement spectrum in tensor renormalization group</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/doubling-of-entanglement-spectrum-in-tensor-renormalization-group/</link><pubDate>Sat, 01 Feb 2014 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/doubling-of-entanglement-spectrum-in-tensor-renormalization-group/</guid><description/></item><item><title>Uniform Matrix Product State in the Thermodynamic Limit</title><link>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/uniform-matrix-product-state-in-the-thermodynamic-limit/</link><pubDate>Tue, 01 Feb 2011 00:00:00 +0000</pubDate><guid>http://www.ueda-group.qiqb.osaka-u.ac.jp/publications/uniform-matrix-product-state-in-the-thermodynamic-limit/</guid><description/></item></channel></rss>