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What is nuclear pasta? 


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Nuclear pasta is an exotic form of nuclear matter that occurs in the crust of neutron stars below saturation density. It consists of various exotic nuclear structures with cylindrical, planar, and more complicated geometries. These structures affect the cooling, rotation, and gravitational wave emission of neutron stars. Quantum calculations show that nuclear pasta becomes a self-organized glassy amorphous solid at characteristic temperatures, similar to soft-matter systems on Earth . The pasta phases in neutron star crusts occupy local minima in the Gibbs energy surfaces and can coexist in a given layer. At a characteristic temperature, different phases become frozen into domains, leading to temperature-dependent transport properties in the crust . Nuclear pasta structures can have different shapes, such as droplet, rod, slab, tube, and bubble, and can evolve into each other via volume conserving deformations. As temperature increases, the long-range ordering in nuclear pasta structures is disrupted, and they eventually convert into uniform nuclear matter .

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Nuclear pasta refers to various crystalline structures (droplet, rod, slab, tube, and bubble) that can form in the inner crust of neutron stars at high temperatures.
Open accessJournal ArticleDOI
26 Sep 2022
1 Citations
Nuclear pasta refers to various crystalline structures (droplet, rod, slab, tube, and bubble) that form in the inner crust of neutron stars at high densities and temperatures.
Open accessJournal ArticleDOI
24 Feb 2022-Physical Review C
11 Citations
Nuclear pasta is an exotic form of nuclear matter that occurs in the crust of neutron stars below saturation density.
Nuclear pasta refers to various shapes of nuclear clusters or voids in the inner crust of neutron stars.
Nuclear pasta refers to various complex shapes and structures formed by the dense nuclear matter in the crust of neutron stars.

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