تقرير
Entanglement-enabled symmetry-breaking orders
| العنوان: | Entanglement-enabled symmetry-breaking orders |
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| المؤلفون: | Lin, Cheng-Ju, Zou, Liujun |
| المصدر: | SciPost Phys. Core 7, 010 (2024) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter High Energy Physics - Theory Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Quantum Gases, Condensed Matter - Statistical Mechanics, High Energy Physics - Theory, Quantum Physics |
| الوصف: | A spontaneous symmetry-breaking order is conventionally described by a tensor-product wave-function of some few-body clusters. We discuss a type of symmetry-breaking orders, dubbed entanglement-enabled symmetry-breaking orders, which cannot be realized by any tensor-product state. Given a symmetry breaking pattern, we propose a criterion to diagnose if the symmetry-breaking order is entanglement-enabled, by examining the compatibility between the symmetries and the tensor-product description. For concreteness, we present an infinite family of exactly solvable gapped models on one-dimensional lattices with nearest-neighbor interactions, whose ground states exhibit entanglement-enabled symmetry-breaking orders from a discrete symmetry breaking. In addition, these ground states have gapless edge modes protected by the unbroken symmetries. We also propose a construction to realize entanglement-enabled symmetry-breaking orders with spontaneously broken continuous symmetries. Under the unbroken symmetries, some of our examples can be viewed as symmetry-protected topological states that are beyond the conventional classifications. Comment: Published version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.21468/SciPostPhysCore.7.1.010 |
| URL الوصول: | http://arxiv.org/abs/2207.08828 |
| رقم الأكسشن: | edsarx.2207.08828 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.21468/SciPostPhysCore.7.1.010 |
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