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Our work to derive a unified quantum theory of coherent and incoherent energy transfer between two atoms—donor and acceptor—valid in arbitrary Markovian nanophotonic environments is published in Optics Express. By developing an exactly solvable theory for resonance energy transfer from the first...

This article proposes circular hidden quantum Markov models (c-HQMMs), which can be applied for modeling temporal data. We show that c-HQMMs are equivalent to a tensor network (more precisely, circular local purified state) model. This equivalence enables us to provide an efficient learning model...

To become more pervasive in daily life, quantum technology needs to better detect single particles of light, called photons, carrying quantum information. The problem is that each photon is a very weak signal, making it difficult for measurement devices to efficiently detect them. Purdue University engineers have proposed a new quantum resource that could help design the next generation of single-photon detectors.

Quantum causality is an emerging field of study which has the potential to greatly advance our understanding of quantum systems. In this paper, we put forth a theoretical framework for merging quantum information science and causal inference by exploiting entropic principles. For this purpose, we...

Our research group delivered a post-deadline talk at the Conference on Lasers and Electro-Optics (CLEO) 2025 in Long Beach, California, which took place from May 4-9, 2025. This talk, reserved for reports of significant and timely research, highlights our group's contributions to the field of modern...