TeNeS-v2: Enhancement for Real-Time and Finite Temperature Simulations of Quantum Many-Body Systems
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866929674991435776 |
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| author | Motoyama, Yuichi Okubo, Tsuyoshi Yoshimi, Kazuyoshi Morita, Satoshi Aoyama, Tatsumi Kato, Takeo Kawashima, Naoki |
| author_facet | Motoyama, Yuichi Okubo, Tsuyoshi Yoshimi, Kazuyoshi Morita, Satoshi Aoyama, Tatsumi Kato, Takeo Kawashima, Naoki |
| contents | Quantum many-body systems are challenging targets for computational physics due to their large degrees of freedom. The tensor networks, particularly Tensor Product States (TPS) and Projected Entangled Pair States (PEPS), effectively represent these systems on two-dimensional lattices. However, the technical complexity of TPS/PEPS-based coding is often too much for researchers to handle. To reduce this problem, we developed TeNeS (Tensor Network Solver). This paper introduces TeNeS-v2, which extends TeNeS with real-time and finite temperature simulations, providing deeper insights into quantum many-body systems. We detail the new algorithms, input/output design, and application examples, demonstrating TeNeS-v2's applicability to various quantum spin and Bose models on two-dimensional lattices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_07777 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | TeNeS-v2: Enhancement for Real-Time and Finite Temperature Simulations of Quantum Many-Body Systems Motoyama, Yuichi Okubo, Tsuyoshi Yoshimi, Kazuyoshi Morita, Satoshi Aoyama, Tatsumi Kato, Takeo Kawashima, Naoki Strongly Correlated Electrons Statistical Mechanics Computational Physics Quantum many-body systems are challenging targets for computational physics due to their large degrees of freedom. The tensor networks, particularly Tensor Product States (TPS) and Projected Entangled Pair States (PEPS), effectively represent these systems on two-dimensional lattices. However, the technical complexity of TPS/PEPS-based coding is often too much for researchers to handle. To reduce this problem, we developed TeNeS (Tensor Network Solver). This paper introduces TeNeS-v2, which extends TeNeS with real-time and finite temperature simulations, providing deeper insights into quantum many-body systems. We detail the new algorithms, input/output design, and application examples, demonstrating TeNeS-v2's applicability to various quantum spin and Bose models on two-dimensional lattices. |
| title | TeNeS-v2: Enhancement for Real-Time and Finite Temperature Simulations of Quantum Many-Body Systems |
| topic | Strongly Correlated Electrons Statistical Mechanics Computational Physics |
| url | https://arxiv.org/abs/2501.07777 |