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Errors in quantum state identification with ultrashort pulses

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arxiv 2503.22817 v1 pith:ALALPN5M submitted 2025-03-28 quant-ph physics.optics

classification quant-phphysics.optics
keywords fieldcoherencecorrelationfunctionsnonstationarypulsesquantumshape
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From the nonclassicality of photon superbunching to the basic property of intensity, we characterize light with correlation and coherence functions. The correlation functions for nonstationary sources, such as short pulses, depend deterministically on the time dependent shape of the field and change the probability of the ensemble in time. We start from the fundamental principles of detection and show how nonstationary fields result in a coherence function that depends not only on the statistics of the field but also on the field shape. This means that observations of bunching and superbunching with ultrafast sources are not indicative of the quantum state of the field.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Theory of quantum optics and optical coherence in high harmonic generation

    quant-ph 2025-04 conditional novelty 6.0 of 10

    A Heisenberg-picture quantum optical theory splits the HHG spectrum into coherent and incoherent parts and predicts single-atom photon anti-bunching with g(2)(0) near 0.005.

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