What Happens When a Neutron Star’s Core Turns Into Quark Matter

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What happens when the core of a neutron star is crushed so hard that the quarks inside neutrons, particles confined since microseconds after the Big Bang, finally break free?

In this video, we explore one of the most extraordinary unsolved questions in physics: the transition from ordinary nuclear matter to deconfined quark matter deep inside neutron star cores.

Sources:

Baym, G., Hatsuda, T., Kojo, T., Powell, P. D., Song, Y., & Takatsuka, T. (2018). "From hadrons to quarks in neutron stars: a review." Reports on Progress in Physics, 81(5), 056902. https://doi.org/10.1088/1361-6633/aaae14

Annala, E., Gorda, T., Kurkela, A., Nättilä, J., & Vuorinen, A. (2020). "Evidence for quark-matter cores in massive neutron stars." Nature Physics, 16, 907–910. https://doi.org/10.1038/s41567-020-09...

Miller, M. C., et al. (2021). "The Radius of PSR J0740+6620 from NICER and XMM-Newton Data." The Astrophysical Journal Letters, 918(2), L28. https://doi.org/10.3847/2041-8213/ac089b

Abbott, B. P., et al. (LIGO/Virgo Collaboration) (2018). "GW170817: Measurements of Neutron Star Radii and Equation of State." Physical Review Letters, 121(16), 161101. https://doi.org/10.1103/PhysRevLett.1...

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