Journal
PHYSICAL REVIEW RESEARCH
Volume 3, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.3.033235
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Funding
- Italian project PRIN 2017 of MUR (Ministero dell'Universita e della Ricerca) Taming complexity via QUantum Strategies a Hybrid Integrated Photonic approach (QUSHIP) [2017SRNBRK]
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The study demonstrates a controllable inhomogeneous quantum walk dynamics, showing that suitable disorder configurations can enhance quantum correlations between two selected modes of the network. Different configurations of disorder can steer the system towards different realizations of such enhancement, allowing spatial and temporal manipulation of quantum correlations between remote modes of quantum walk networks.
The presence of disorder and inhomogeneities in quantum networks has often been unexpectedly beneficial for both quantum and classical resources. Here we experimentally realize a controllable inhomogenous quantum walk (QW) dynamics, which can be exploited to investigate the effect of coherent disorder on the quantum correlations between two indistinguishable photons. Through the imposition of suitable disorder configurations, we observe two-photon states that exhibit an enhancement in the quantum correlations between two selected modes of the network, compared to the case of an ordered QW. Different configurations of disorder can steer the system toward different realizations of such an enhancement, thus allowing spatial and temporal manipulation of quantum correlations between remote modes of QW networks.
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