تقرير
Continuous symmetry breaking in adaptive quantum dynamics
| العنوان: | Continuous symmetry breaking in adaptive quantum dynamics |
|---|---|
| المؤلفون: | Hauser, Jacob, Li, Yaodong, Vijay, Sagar, Fisher, Matthew P. A. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Statistical Mechanics |
| الوصف: | Adaptive quantum circuits, in which unitary operations, measurements, and feedback are used to steer quantum many-body systems, provide an exciting opportunity to generate new dynamical steady states. We introduce an adaptive quantum dynamics with continuous symmetry where unitary operations, measurements, and local unitary feedback are used to drive ordering. In this setting, we find a pure steady state hosting symmetry-breaking order, which is the ground state of a gapless, local Hamiltonian. We explore the dynamical properties of the approach to this steady state. We find that this steady-state order is fragile to perturbations, even those that respect the continuous symmetry. Comment: 17 pages, 10 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2304.13198 |
| رقم الأكسشن: | edsarx.2304.13198 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |