Journal
PHYSICAL REVIEW LETTERS
Volume 129, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.129.020401
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Funding
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico), Brazil
- CNPq-Edital Universal [406563/2021-7]
- Australian Research Council [DP200101339]
- Australian Research Council [DP200101339] Funding Source: Australian Research Council
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High sensitivity quantum interferometry requires a deep understanding of quantum correlations, which can be achieved through integrable models. By designing interferometric protocols, the quantum dynamics of the system can be described and its functionality and equivalence can be revealed.
High sensitivity quantum interferometry requires more than just access to entangled states. It is achieved through the deep understanding of quantum correlations in a system. Integrable models offer the framework to develop this understanding. We communicate the design of interferometric protocols for an integrable model that describes the interaction of bosons in a four-site configuration. Analytic formulas for the quantum dynamics of certain observables are computed. These expose the system???s functionality as both an interferometric identifier, and producer, of NOON states. Being equivalent to a controlled-phase gate acting on 2 hybrid qudits, this system also highlights an equivalence between Heisenberg-limited interferometry and quantum information. These results are expected to open new avenues for integrability-enhanced atomtronic technologies.
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