Two Toy Spin Chain Models of Decoherence
Fuente:
arXiv
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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866913343176966144 |
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| author | Zhu, P. C. E. Stamp Zhen |
| author_facet | Zhu, P. C. E. Stamp Zhen |
| contents | We solve for the decoherence dynamics of two models in which a simple qubit or Central Spin couples to a bath of spins; the bath is made from a chain of spins. In model 1, the bath spins are Ising spins; in Model 2, they are coupled by transverse spin-spin interactions, and the chain supports spin waves. We look at (i) the case where the Hamiltonian is static, with a constant system/bath coupling, and (ii) where this coupling varies in time. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_03795 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Two Toy Spin Chain Models of Decoherence Zhu, P. C. E. Stamp Zhen Quantum Physics Other Condensed Matter We solve for the decoherence dynamics of two models in which a simple qubit or Central Spin couples to a bath of spins; the bath is made from a chain of spins. In model 1, the bath spins are Ising spins; in Model 2, they are coupled by transverse spin-spin interactions, and the chain supports spin waves. We look at (i) the case where the Hamiltonian is static, with a constant system/bath coupling, and (ii) where this coupling varies in time. |
| title | Two Toy Spin Chain Models of Decoherence |
| topic | Quantum Physics Other Condensed Matter |
| url | https://arxiv.org/abs/2405.03795 |