论文标题
在斜时时期晶体中的浮孔振荡和标准的齐纳隧道
Floquet-Bloch Oscillations and Intraband Zener Tunneling in an Oblique Spacetime Crystal
论文作者
论文摘要
我们研究了一种由单原子晶体实现的倾斜时空晶体，其中一种声音传播。我们提供了对晶体的系统分析，并获得了相应的带结构，该结构研究了外部电场下的电子动力学。揭示了几种独特的带拓扑，这导致了电子运动中新型的Floquet-Bloch振荡。我们还发现了超出绝热极限的斜时空晶体中的标准齐纳隧穿，该晶体有效地在不同的带拓扑之间转换。我们的结果表明，典型的量子量子发电机可能会在量化单元中转换能量和直流电场之间的能量。
We investigate an oblique spacetime crystal realized by a monoatomic crystal in which a mode of sound propagates. We provide a systematic analysis of the crystal and obtain the corresponding band structure, based on which the electron dynamics under an external electric field is studied. Several unique band topologies are revealed, which lead to novel Floquet-Bloch oscillations in the electron's motion. We also discover intraband Zener tunneling in the oblique spacetime crystal beyond the adiabatic limit, which effectively converts between the different band topologies. Our results indicate the possibility of a prototypical quantum acoustoelectric generator that converts energy between the sound wave and a DC electric field in quantized units.
