用于物质波光学的负折射率介质
Negative-index media for matter-wave optics
摘要：
我们考虑光学超材料的扩展到物质波。我们表明，脉冲共动磁场的一般属性，使我们能够时尚的波数依赖的原子相移。它可以用来产生原子波包的瞬时负群速度，从而导致物质波的负折射。应用于慢亚稳态氩原子Ar*（3P2）表明，该设备能够作为一个有效的分束器或原子元透镜。被认为是“元介质”在原子光学的影响。
英文摘要：
We consider the extension of optical meta-materials to matter waves. We show that the generic property of pulsed comoving magnetic fields allows us to fashion the wave-number dependence of the atomic phase shift. It can be used to produce a transient negative group velocity of an atomic wave packet, which results into a negative refraction of the matter wave. Application to slow metastable argon atoms Ar*(3P2) shows that the device is able to operate either as an efficient beam splitter or an atomic meta-lens. Implications of "meta-media" in atom optics are considered.
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