Charles Roques-Carmes

Jan 21, 2025 | link.aps.org | Charles Roques-Carmes |Shanhui Fan

Enhancing interactions in many-body quantum systems, while protecting them from environmental decoherence, is at the heart of many quantum technologies. Waveguide quantum electrodynamics is a promising platform for achieving this, as it hosts infinite-range interactions and decoherence-free subspaces of quantum emitters.

Sep 19, 2024 | nature.com | Charles Roques-Carmes |Shanhui Fan

AbstractOptical phenomena always display some degree of partial coherence between their respective degrees of freedom. Partial coherence is of particular interest in multimodal systems, where classical and quantum correlations between spatial, polarization, and spectral degrees of freedom can lead to fascinating phenomena (e.g., entanglement) and be leveraged for advanced imaging and sensing modalities (e.g., in hyperspectral, polarization, and ghost imaging).

Sep 4, 2024 | nature.com | Seou Choi |Yannick Salamin |Charles Roques-Carmes |Rumen Dangovski |Di Luo |Zhuo Chen | +2 more

AbstractProbabilistic machine learning utilizes controllable sources of randomness to encode uncertainty and enable statistical modeling. Harnessing the pure randomness of quantum vacuum noise, which stems from fluctuating electromagnetic fields, has shown promise for high speed and energy-efficient stochastic photonic elements. Nevertheless, photonic computing hardware which can control these stochastic elements to program probabilistic machine learning algorithms has been limited.

Jul 13, 2023 | science.org | Fei Huang |Anna K. Orta |Bing Huang |Charles Roques-Carmes

Editor’s summaryThe state of quantum mechanical systems fluctuates. In optics, these fluctuations can be harnessed for the generation of truly random bit strings. The random fluctuations can also be used in probabilistic computing, but this requires the probability distributions to be controllable. Using the two-state phase output from an optical parametric amplifier as a “bit, ” Roques-Carmes et al.

Apr 27, 2023 | science.org | Nicole M. Foley |Kathleen C. Keough |Irene M. Kaplow |Charles Roques-Carmes

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