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Broad Instantaneous Bandwidth Microwave Spectrum Analyzer with a Microfabricated Atomic Vapor Cell
Yongqi Shi, Thomas Ruster, Melvyn Ho +3
We report on broad instantaneous bandwidth microwave spectrum analysis with hot atoms in a microfabricated vapor cell in a large magnetic field gradient. The sen…
Nuclear spin squeezing by continuous quantum non-demolition measurement: a theoretical study
Alan Serafin, Yvan Castin, Matteo Fadel +2
We propose to take advantage of the weak coupling of ground-state helium-3 nuclear spin to its environment to produce long-lived macroscopic quantum states, nuclear spin squeezed s…
Fundamental limit of phase coherence in two-component Bose-Einstein condensates
Yifan Li, Krzysztof Pawłowski, Boris Décamps +4
We experimentally and theoretically study phase coherence in two-component Bose-Einstein condensates of atoms on an atom chip. Using Ramsey interferometry we measur…
Frequency-Tunable Microwave Field Detection in an Atomic Vapor Cell
Andrew Horsley, Philipp Treutlein
We use an atomic vapor cell as a frequency tunable microwave field detector operating at frequencies from GHz to tens of GHz. We detect microwave magnetic fields from 2.3 GHz to 26…
Widefield Microwave Imaging in Alkali Vapor Cells with sub-100 um Resolution
Andrew Horsley, Guan-Xiang Du, Philipp Treutlein
We report on widefield microwave vector field imaging with sub um resolution using a microfabricated alkali vapor cell. The setup can additionally image dc magnetic fields, and can…
Imaging Microwave and DC Magnetic Fields in a Vapor-Cell Rb Atomic Clock
Christoph Affolderbach, Guan-Xiang Du, Thejesh Bandi +3
We report on the experimental measurement of the DC and microwave magnetic field distributions inside a recently-developed compact magnetron-type microwave cavity, mounted inside t…