تقرير
Coherent control of orbital wavefunctions in the quantum spin liquid $Tb_{2}Ti_{2}O_{7}$
| العنوان: | Coherent control of orbital wavefunctions in the quantum spin liquid $Tb_{2}Ti_{2}O_{7}$ |
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| المؤلفون: | Mankowsky, R., Müller, M., Sander, M., Zerdane, S., Liu, X., Babich, D., Ueda, H., Deng, Y., Winkler, R., Strudwick, B., Savoini, M., Giorgianni, F., Johnson, S. L., Pomjakushina, E., Beaud1, P., Fennel, T., Lemke, H. T., Staub, U. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Quantum Physics |
| الوصف: | Resonant driving of electronic transitions with coherent laser sources creates quantum coherent superpositions of the involved electronic states. Most time-resolved studies have focused on gases or isolated subsystems embedded in insulating solids, aiming for applications in quantum information. Here, we demonstrate coherent control of orbital wavefunctions in pyrochlore $Tb_{2}Ti_{2}O_{7}$, which forms an interacting spin liquid ground state. We show that resonant excitation with a strong THz pulse creates a coherent superposition of the lowest energy Tb 4f states before the magnetic interactions eventually dephase them. The coherence manifests itself as a macroscopic oscillating magnetic dipole, which is detected by ultrafast resonant x-ray diffraction. The induced quantum coherence demonstrates coherent control of orbital wave functions, a new tool for the ultrafast manipulation and investigation of quantum materials. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2309.12751 |
| رقم الأكسشن: | edsarx.2309.12751 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |