Transport properties near the Dirac point in graphene are expected to be determined by quantum many-body interactions between relativistic electrons. Experiments now show that the flow of charge and heat in high-quality graphene close to charge neutrality can be described within a hydrodynamic framework, with universal intrinsic electrical conductivity that is quantized to a value close to the quantum of conductance.
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This is a summary of: Majumdar, A. et al. Universality in quantum critical flow of charge and heat in ultraclean graphene. Nat. Phys. https://doi.org/10.1038/s41567-025-02972-z (2025).
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Quantized limit of conductivity in near-ideal graphene. Nat. Phys. 21, 1357–1358 (2025). https://doi.org/10.1038/s41567-025-02974-x
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DOI: https://doi.org/10.1038/s41567-025-02974-x
