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arXiv 0812.3034quant-phcond-mat.otherphysics.gen-ph
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量子瞬变

Quantum transients

A. del Campo, G. Garcia-Calderon, J. G. Muga

摘要:

量子瞬变是物质波在达到稳定状态之前的暂时特征。瞬变可能出现在不稳定的初始状态准备后,或由于突然的相互作用或边界条件的变化。例子是时间上的衍射、积累过程、衰变、俘获、先导或脉冲形成,以及最近发现的其他现象,例如在任意距离的观察者处同时到达波峰。如今,控制、操纵和测量物质波的新技术可能性增强了人们对这些瞬态的兴趣。

英文摘要:

Quantum transients are temporary features of matter waves before they reach a stationary regime. Transients may arise after the preparation of an unstable initial state or due to a sudden interaction or a change in the boundary conditions. Examples are diffraction in time, buildup processes, decay, trapping, forerunners or pulse formation, as well as other phenomena recently discovered, such as the simultaneous arrival of a wave peak at arbitrarily distant observers. The interest on these transients is nowadays enhanced by new technological possibilities to control, manipulate and measure matter waves.

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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