Massive Nambu-Goldstone Bosons

Watanabe H, Brauner T, Murayama H (2013)
Physical Review Letters 111(2).

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Nicolis and Piazza have recently pointed out the existence of Nambu-Goldstone-like excitations in relativistic systems at finite density, whose gap is exactly determined by the chemical potential and the symmetry algebra. We show that the phenomenon is much more general than anticipated and demonstrate the presence of such modes in a number of systems from (anti) ferromagnets in a magnetic field to superfluid phases of quantum chromodynamics. Furthermore, we prove a counting rule for these massive Nambu-Goldstone bosons and construct a low-energy effective Lagrangian that captures their dynamics.
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Physical Review Letters
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111
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2
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Watanabe H, Brauner T, Murayama H. Massive Nambu-Goldstone Bosons. Physical Review Letters. 2013;111(2).
Watanabe, H., Brauner, T., & Murayama, H. (2013). Massive Nambu-Goldstone Bosons. Physical Review Letters, 111(2). doi:10.1103/PhysRevLett.111.021601
Watanabe, H., Brauner, T., and Murayama, H. (2013). Massive Nambu-Goldstone Bosons. Physical Review Letters 111.
Watanabe, H., Brauner, T., & Murayama, H., 2013. Massive Nambu-Goldstone Bosons. Physical Review Letters, 111(2).
H. Watanabe, T. Brauner, and H. Murayama, “Massive Nambu-Goldstone Bosons”, Physical Review Letters, vol. 111, 2013.
Watanabe, H., Brauner, T., Murayama, H.: Massive Nambu-Goldstone Bosons. Physical Review Letters. 111, (2013).
Watanabe, Haruki, Brauner, Tomás, and Murayama, Hitoshi. “Massive Nambu-Goldstone Bosons”. Physical Review Letters 111.2 (2013).

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PMID: 23889384
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arXiv: 1303.1527

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