تقرير
Gauge theory for quantum XYZ spin glasses
| العنوان: | Gauge theory for quantum XYZ spin glasses |
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| المؤلفون: | Itoi, C., Sakamoto, Y. |
| المصدر: | J. Phys. A: Math. Theor. 57, 045001 (2024) |
| سنة النشر: | 2023 |
| المجموعة: | Mathematics Condensed Matter Mathematical Physics |
| مصطلحات موضوعية: | Mathematical Physics, Condensed Matter - Disordered Systems and Neural Networks |
| الوصف: | Nishimori's gauge theory is extended to the quantum XYZ $p$-spin glass model in finite dimensions. This enables us to obtain useful correlation equalities, which show also that Duhamel correlation functions at an arbitrary temperature are bounded by those in the corresponding classical model on the Nishimori line. These bounds give that the spontaneous magnetization vanishes in any low temperature even if the model enters the $\mathbb Z_2$-symmetry broken spin glass phase. This theory explains well-known fact from experiments and numerical calculations that the magnetic susceptibility does not diverge in the spin glass transition. The new gauge theory together with the known phase diagram of the Edwards-Anderson model can specify the spin glass region in the coupling constant space of the quantum Heisenberg XYZ spin glass model. Comment: 13 pages, 1 figure. arXiv admin note: text overlap with arXiv:2305.19630 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1751-8121/ad1a1d |
| URL الوصول: | http://arxiv.org/abs/2312.13042 |
| رقم الأكسشن: | edsarx.2312.13042 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1751-8121/ad1a1d |
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