Position-dependent oscillated decay of a two-level atom immersed in a two-dimensional photon fluid
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- 作者：Xiongfeng Zhang ; Miao Yin ; scmyin@scut.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Wenyao Liang
- 关键词：Spontaneous emission ; Photon superfluid ; Decay rate
- 刊名：Optics Communications
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：359
- 期：Complete
- 页码：44-48
- 全文大小：724 K
文摘
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A Weisskopf–Wigner theory has been used to investigate the spontaneous emission of a two-level atom placed in a photon superfluidity.
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It is found that the atom decays exponentially.
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However, the atomic decay rate changes periodically with its position.
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It gets the minimum when atom is located at the wave nodes.
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The largest decay rate of the atom in photon superfluidity has the same order of magnitude as it is in vacuum of free space.