학술논문
Large $N$ fractons
Document Type
Working Paper
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Source
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Abstract
We consider theories of fractons with $N$ fields. These theories have exotic spacetime symmetries, including a conserved dipole moment. Using collective fields we solve these models to leading order in large $N$. The large $N$ solution reveals that these models are strongly correlated, and that interactions generate a momentum-dependent self-energy. Dipole symmetry is spontaneously broken throughout the phase diagram of these models, leading to a low-energy Goldstone description of what we dub "dipole superfluids."
Comment: 5 + 15 pages, 6 figures
Comment: 5 + 15 pages, 6 figures