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arXiv 1010.0132quant-phcond-mat.quant-gas
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Wannier-Stark晶格系统带间输运的有效自旋模型

Effective spin model for interband transport in a Wannier-Stark lattice system

Patrick Plötz, Peter Schlagheck, Sandro Wimberger

摘要:

我们证明了倾斜双带玻色-哈伯德模型中的带间动力学在带间共振振荡的情况下可以简化为一个解析的自旋模型。这使我们能够预测由于粒子间相互作用而衰减和恢复的这些振荡的恢复时间。所提出的映射到自旋模型和因此实现的复杂性的减少有有趣的前景,为未来的多体系统的研究。

英文摘要:

We show that the interband dynamics in a tilted two-band Bose-Hubbard model can be reduced to an analytically accessible spin model in the case of resonant interband oscillations. This allows us to predict the revival time of these oscillations which decay and revive due to inter-particle interactions. The presented mapping onto the spin model and the so achieved reduction of complexity has interesting perspectives for future studies of many-body systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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