Open AccessThe Heisenberg limit for laser coherence
Author(s) -
Howard M. Wiseman,
S. N. Saadatmand,
Travis J. Baker,
Dominic W. Berry
Publication year - 2019
Publication title -
griffith research online (griffith university)
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1364/cqo.2019.m3a.1
Subject(s) - heisenberg limit , coherence (philosophical gambling strategy) , coherence time , photon , physics , limit (mathematics) , laser , coherence theory , quantum mechanics , laser beams , quantum optics , coherence length , heisenberg picture , optics , mathematics , quantum , quantum information , mathematical analysis , quantum network , superconductivity
Let ℭ be the number of photons in a coherence time. The standard (Schawlow-Townes) result is ℭ = O ( µ 2 ), with µ the laser cavity photon number. Here we establish the Heisenberg limit: ℭ = O ( µ 4 ).
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