Nonlocal order parameter of pair superfluids

Order parameters represent a fundamental resource to characterize quantum matter. We show that pair superfluids can be rigorously defined in terms of a nonlocal order parameter, named odd parity, which derivation is experimentally accessible by local density measurements. As a case of study, we firs...

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Bibliographic Details
Main Author: Nitya Cuzzuol, Luca Barbiero, Arianna Montorsi
Format: Article
Language:English
Published: SciPost 2025-02-01
Series:SciPost Physics Core
Online Access:https://scipost.org/SciPostPhysCore.8.1.020
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