Creating Steady Atom-Molecule Entanglement by Demkov-Kunike Type Non-adiabatic Transition

含噪声的 Demkov-Kunike 模型

Noisy Demkov-Kunike model

本文将可精确求解的 DK 模型推广至含有色 Markovian 耦合噪声情形，推导存活概率精确解，并揭示电报噪声与 Gaussian 噪声的不同作用。

Non-adiabatic bulk-surface oscillations in driven topological insulators

Recent theoretical and experimental work has suggested the tantalizing possibility of opening a topological gap upon driving the surface states of a three-dimensional strong topological insulator (TI) with circularly polarized light. With this motivation, we study the response of TIs to a driving field that couples to states near the surface. We unexpectedly find coherent oscillations between the surface and the bulk and trace their appearance to unavoidable resonances caused by photon absorption from the drive. We show how these resonant oscillations may be captured by the Demkov- Osherov mod…