用玻色-爱因斯坦凝聚体感应微波光子

IF 5.8 2区物理与天体物理 Q1 OPTICS EPJ Quantum Technology Pub Date : 2020-01-15 DOI:10.1140/epjqt/s40507-020-0078-7

Orsolya Kálmán, Peter Domokos

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引用次数: 0

摘要

我们考虑铷原子的磁捕获玻色-爱因斯坦凝聚体与共面波导谐振器维持的固定微波辐射场的相互作用。这种耦合允许通过计算由于超精细跃迁到非捕获态而从凝聚体中脱落的原子来测量谐振器的磁场。我们确定了这种检测方案的量子效率，并证明了在单光子水平上可以检测到弱微波场。

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Sensing microwave photons with a Bose–Einstein condensate

We consider the interaction of a magnetically trapped Bose–Einstein condensate of Rubidium atoms with the stationary microwave radiation field sustained by a coplanar waveguide resonator. This coupling allows for the measurement of the magnetic field of the resonator by means of counting the atoms that fall out of the condensate due to hyperfine transitions to non-trapped states. We determine the quantum efficiency of this detection scheme and show that weak microwave fields at the single-photon level can be sensed.

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来源期刊

EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

7.70

自引率

7.50%

发文量

审稿时长

71 days

期刊介绍： Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.