Quantum optics with Rydberg superatoms

IF 1.1 Q3 PHYSICS, MULTIDISCIPLINARY
J. Kumlin, C. Braun, C. Tresp, N. Stiesdal, S. Hofferberth, A. Paris-Mandoki
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引用次数: 0

Abstract

Quantum optics based on highly excited atoms, also known as Rydberg atoms, has cemented itself as a powerful platform for the manipulation of light at the few-photon level. The Rydberg blockade, resulting from the strong interaction between individual Rydberg atoms, can turn a large ensemble of atoms into a system which collectively resembles a single two-level emitter, a so-called Rydberg superatom. The coupling of this artificial emitter to a driving photonic mode is collectively enhanced by Rydberg interactions, enabling strong coherent coupling at the few-photon level in free-space. The exquisite level of control achievable through this has already demonstrated its utility in applications of quantum computing and information processing. Here, we review the derivation of the collective coupling between a Rydberg superatom and a single light mode and discuss the similarity of this free-space setup to waveguide quantum electrodynamics systems of quantum emitters coupled to photonic waveguides. We also briefly review applications of Rydberg superatoms to quantum optics such as single-photon generation and single-photon subtraction.
Rydberg超原子的量子光学
基于高度激发原子(也称为里德伯原子)的量子光学已经巩固了其作为在少光子水平上操纵光的强大平台的地位。由单个里德伯原子之间的强相互作用产生的里德伯阻断可以将一个大的原子系综变成一个整体类似于单个两能级发射极的系统,即所谓的里德伯超原子。Rydberg相互作用共同增强了这种人造发射器与驱动光子模式的耦合,从而在自由空间中实现了少光子级的强相干耦合。通过这种方式可以实现的精细控制水平已经证明了它在量子计算和信息处理应用中的实用性。在这里,我们回顾了里德堡超原子和单光模式之间集体耦合的推导,并讨论了这种自由空间设置与耦合到光子波导的量子发射器的波导量子电动力学系统的相似性。我们还简要回顾了里德伯超原子在量子光学中的应用,如单光子产生和单光子相减。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Physics Communications
Journal of Physics Communications PHYSICS, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
0.00%
发文量
114
审稿时长
10 weeks
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