Non-local Order Parameters and Quantum Entanglement for Fermionic Topological Field Theories
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2019
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| _version_ | 1866909354607771648 |
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| author | Inamura, Kansei Kobayashi, Ryohei Ryu, Shinsei |
| author_facet | Inamura, Kansei Kobayashi, Ryohei Ryu, Shinsei |
| contents | We study quantized non-local order parameters, constructed by using partial time-reversal and partial reflection, for fermionic topological phases of matter in one spatial dimension protected by an orientation reversing symmetry, using topological quantum field theories (TQFTs). By formulating the order parameters in the Hilbert space of state sum TQFT, we establish the connection between the quantized non-local order parameters and the underlying field theory, clarifying the nature of the order parameters as topological invariants. We also formulate several entanglement measures including the entanglement negativity on state sum spin TQFT, and describe the exact correspondence of the entanglement measures to path integrals on a closed surface equipped with a specific spin structure. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1911_00653 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | Non-local Order Parameters and Quantum Entanglement for Fermionic Topological Field Theories Inamura, Kansei Kobayashi, Ryohei Ryu, Shinsei Strongly Correlated Electrons High Energy Physics - Theory Quantum Physics We study quantized non-local order parameters, constructed by using partial time-reversal and partial reflection, for fermionic topological phases of matter in one spatial dimension protected by an orientation reversing symmetry, using topological quantum field theories (TQFTs). By formulating the order parameters in the Hilbert space of state sum TQFT, we establish the connection between the quantized non-local order parameters and the underlying field theory, clarifying the nature of the order parameters as topological invariants. We also formulate several entanglement measures including the entanglement negativity on state sum spin TQFT, and describe the exact correspondence of the entanglement measures to path integrals on a closed surface equipped with a specific spin structure. |
| title | Non-local Order Parameters and Quantum Entanglement for Fermionic Topological Field Theories |
| topic | Strongly Correlated Electrons High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/1911.00653 |