Nonadiabatic losses from radio-frequency-dressed cold-atom traps: Beyond the Landau-Zener model

Kathryn A. Burrows; Hélène Perrin; Barry M. Garraway

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Nonadiabatic losses from radio-frequency-dressed cold-atom traps: Beyond the Landau-Zener model

机译：射频衣物冷 - 原子陷阱的非抗损失：超越Landau-Zener模型

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Nonadiabatic decay rates for a radio-frequency-dressed magnetic trap are calculated using Fermi's golden rule: that is, we examine the probability for a single atom to make transitions out of the dressed trap and into a continuum in the adiabatic limit, where perturbation theory can be applied. This approach can be compared to the semiclassical Landau-Zener theory of a resonant dressed atom trap, and it is found that, when carefully implemented, the Landau-Zener theory overestimates the rate of nonadiabatic spin-flip transitions in the adiabatic limit. This indicates that care is needed when determining requirements on trap Rabi frequency and magnetic-field gradient in practical atom traps.

机译：使用Fermi的黄金法则计算射频衣物捕集磁阱的非抗衰减率：即，我们检查单个原子的概率，以使穿过衣服的陷阱和扰动理论的绝热极限中的连续概率。可以应用。这种方法可以比较与谐振衣服的原子陷阱的半透明地齐纳理论进行比较，并且发现，当仔细实施时，Landau-Zener理论高估了绝热极限中的非等压自旋翻转过渡的速率。这表明在确定实际原子陷阱中的陷阱Rabi频率和磁场梯度的要求时需要小心。

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《Physical Review, A》 |2017年第2期|共13页
作者
Kathryn A. Burrows; Hélène Perrin; Barry M. Garraway;
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作者单位

Department of Physics and Astronomy University of Sussex Brighton BN1 9QH United Kingdom;

Laboratoire de physique des lasers CNRS Université Paris 13 Sorbonne Paris Cité 99 avenue J.-B. Clément F-93430 Villetaneuse France;

Department of Physics and Astronomy University of Sussex Brighton BN1 9QH United Kingdom;

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原文格式 PDF
正文语种 eng
中图分类物理学;分子物理学、原子物理学;原子核物理学、高能物理学;光学;
关键词
Nonadiabatic; radio-frequency-dressed; cold-atom traps;

机译：非驱矩;穿射射频;冷 - 原子陷阱;

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1. Nonadiabatic losses from radio-frequency-dressed cold-atom traps: Beyond the Landau-Zener model [J] . Kathryn A. Burrows, Hélène Perrin, Barry M. Garraway Physical Review, A . 2017,第2aPta2期

机译：射频衣物冷 - 原子陷阱的非抗损失：超越Landau-Zener模型
2. Suppression of nonadiabatic losses of molecules from chip-based microtraps [J] . Samuel A. Meek, Gabriele Santambrogio, Boris G. Sartakov, Physical Review, A. Atomic, molecular, and optical physics . 2011,第3aPta2期

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3. A theoretical study on nonadiabatic trapping models of the reaction NH+H←→N+H2 [J] . 中国化学快报（英文版） . 1999,第003期

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4. Exact, conformal-mapping models for the high-frequency losses of coplanar waveguides with thick electrodes of rectangular or trapezoidal cross section [C] . Ghione, G., Goano, . 1999

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5. Development of a compact cold-atom atomic clock based on coherent population trapping. [D] . Blanshan, Eric M. 2014

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7. Nonadiabatic losses from radio-frequency-dressed cold-atom traps: beyond the Landau-Zener model [O] . Burrows Kathryn A, Perrin Hélène, Garraway Barry M 2017

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Nonadiabatic losses from radio-frequency-dressed cold-atom traps: Beyond the Landau-Zener model

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