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Creators/Authors contains: "Du, Matthew"

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  1. ; ; (, Annual Review of Physical Chemistry)
    Information is an important resource. Storing and retrieving information faithfully are huge challenges and many methods have been developed to understand the principles behind robust information processing. In this review, we focus on information storage and retrieval from the perspective of energetics, dynamics, and statistical mechanics. We first review the Hopfield model of associative memory, the classic energy-based model of memory. We then discuss generalizations and physical realizations of the Hopfield model. Finally, we highlight connections to energy-based neural networks used in deep learning. We hope this review inspires new directions along the lines of information storage and retrieval in physical systems. 
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    Free, publicly-accessible full text available April 21, 2026
  2. ; ; ; ; ; ; ; ; ; ; et al (, Science Advances)
    Topological insulators are insulators in the bulk but feature chiral energy propagation along the boundary. This property is topological in nature and therefore robust to disorder. Originally discovered in electronic materials, topologically protected boundary transport has since been observed in many other physical systems. Thus, it is natural to ask whether this phenomenon finds relevance in a broader context. We choreograph a dance in which a group of humans, arranged on a square grid, behave as a topological insulator. The dance features unidirectional flow of movement through dancers on the lattice edge. This effect persists when people are removed from the dance floor. Our work extends the applicability of wave physics to dance. 
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    Full Text Available 
  3. ; ; ; ; (, Science)
    Two-dimensional infrared spectroscopy resolves ultrafast chemical dynamics in Fe(CO) 5 under vibrational strong coupling. 
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    Full Text Available 
  4. ; ; ; ; ; ; ; ; ; ; et al (, ACS Nano)
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    Full Text Available 
  5. ; ; (, The Journal of Chemical Physics)
  6. ; ; ; ; ; ; (, ACS Photonics)
    Full Text Available 
  7. ; ; ; ; (, The Journal of Physical Chemistry Letters)
  8. ; ; ; ; ; ; ; (, Science)
    Selective vibrational energy transfer between molecules in the liquid phase, a difficult process hampered by weak intermolecular forces, is achieved through polaritons formed by strong coupling between cavity photon modes and donor and acceptor molecules. Using pump-probe and two-dimensional infrared spectroscopy, we found that the excitation of the upper polariton, which is composed mostly of donors, can efficiently relax to the acceptors within ~5 picoseconds. The energy-transfer efficiency can be further enhanced by increasing the cavity lifetime, suggesting that the energy transfer is a polaritonic process. This vibrational energy-transfer pathway opens doors for applications in remote chemistry, sensing mechanisms, and vibrational polariton condensation. 
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  9. ; ; ; ; ; (, Chemical Science)
    A comprehensive theory is presented to mechanistically elucidate the long-range energy transfer between molecules strongly coupled to electromagnetic fields. 
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