ダウンロード数: 201
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
PhysRevB.97.045124.pdf | 676.42 kB | Adobe PDF | 見る/開く |
タイトル: | Entanglement branching operator |
著者: | Harada, Kenji https://orcid.org/0000-0003-0231-7880 (unconfirmed) |
著者名の別形: | 原田, 健自 |
発行日: | 15-Jan-2018 |
出版者: | American Physical Society (APS) |
誌名: | Physcal Review B |
巻: | 97 |
号: | 4 |
論文番号: | 045124 |
抄録: | We introduce an entanglement branching operator to split a composite entanglement flow in a tensor network which is a promising theoretical tool for many-body systems. We can optimize an entanglement branching operator by solving a minimization problem based on squeezing operators. The entanglement branching is a new useful operation to manipulate a tensor network. For example, finding a particular entanglement structure by an entanglement branching operator, we can improve a higher-order tensor renormalization group method to catch a proper renormalization flow in a tensor network space. This new method yields a new type of tensor network states. The second example is a many-body decomposition of a tensor by using an entanglement branching operator. We can use it for a perfect disentangling among tensors. Applying a many-body decomposition recursively, we conceptually derive projected entangled pair states from quantum states that satisfy the area law of entanglement entropy. |
著作権等: | ©2018 American Physical Society |
URI: | http://hdl.handle.net/2433/231106 |
DOI(出版社版): | 10.1103/PhysRevB.97.045124 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。