Testing quantum theory with higher-order interference in many-particle correlations
著者
書誌事項
Testing quantum theory with higher-order interference in many-particle correlations
（Springer theses : recognizing outstanding Ph. D. research）
Springer, c2022
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注記
"Doctoral thesis accepted by Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany"
Includes bibliographical references
内容説明・目次
内容説明
The structure of quantum theory permits interference of indistinguishable paths. At the same time, however, it also limits such interference to certain orders and any higher-order interference is prohibited. This thesis develops and studies concepts to test quantum theory with higher-order interference using many-particle correlations, the latter being generally richer and typically more subtle than single-particle correlations. It is demonstrated that quantum theory in general allows for interference up to order 2M in M-particle correlations. Depending on the mutual coherence of the particles, however, the related interference hierarchy can terminate earlier. In this thesis, we show that mutually coherent particles can exhibit interference of the highest orders allowed. We further demonstrate that interference of mutually incoherent particles truncates already at order M+1, although interference of the latter is principally more multifaceted than their coherent counterpart. We introduce two families of many-particle Sorkin parameters, whose members are expected to be all zero when quantum mechanics holds. As proof of concept, we demonstrate the disparate vanishing of such higher-order interference terms as a function of coherence in experiments with mutually coherent and incoherent sources. Finally, we investigate the influence of exotic kinked or looped quantum paths, which are permitted by Feynman's path integral approach, in such setups.
目次
Introduction.- Foundations.- Path Integral Approach to Quantum Interference.- Quantum Theory of Light.- A Family of Sorkin Parameters to Test Born's Rule Using Mutually Coherent Sources.- Measuring the Interference Hierarchy of Single- and Two-Particle Correlations With Coherent Light.- Appendix.
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