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Quantum optical weak measurements can visualize photon dynamics in real time

Jürgen Audretsch·Thomas Konrad·Artur Scherer
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Abstract

An experiment is proposed to visualize stroboscopically in real time the dynamics of a photon oscillating between two cavities. The visualization is implemented by a sequence of weak measurements (POVM), which are carried out by probing one of the cavities with a Rydberg atom and detecting a resulting phase shift by Ramsey interferometry. This way to measure the number of photons in a cavity was experimentally realized by Brune et al.. We suggest a feedback mechanism which minimizes the disturbance due to the measurement and enables a detection of the original evolution of the radiation field. PACS numbers: 03.65.Ta, 32.80.-t, 03.67.-a

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Jürgen Audretsch, Thomas Konrad, Artur Scherer. 2001-12-10. Quantum optical weak measurements can visualize photon dynamics in real time. https://arxiv.org/abs/quant-ph/0012060

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