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the claim
Gapless excitations in condensed matter physics include Goldstone bosons resulting from spontaneous symmetry breaking.
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
3 sources for · 0 against

Gapless excitations in condensed matter and quantum many-body systems are well established as arising from spontaneous symmetry breaking in the form of Goldstone bosons.

Evidence for · 3
Spontaneous Symmetry Breaking and Nambu-Goldstone Bosons in Quantum Many-Body Systems
2010 · cited by 146
Paper [0] reviews spontaneous symmetry breaking and the Goldstone theorem in quantum many-body systems, explicitly detailing the emergence of Nambu-Goldstone bosons and their dispersion relations.
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The analysis

The retrieved papers provide robust theoretical and experimental evidence demonstrating that spontaneous symmetry breaking in condensed matter and quantum many-body systems results in gapless excitations, specifically Nambu-Goldstone bosons. Papers [0], [1], and [8] directly support this fundamental principle.

More for · 2
Bulk viscosity in kaon-condensed color–flavor-locked quark matter
2008 · cited by 31
Paper [1] discusses how color-superconducting quark matter spontaneously breaks baryon number and chiral symmetry, giving rise to low-energy Goldstone bosons.
Phase diagram and spectroscopic signatures of a supersolid in the quantum ising magnet K<sub>2</sub>Co(SeO<sub>3</sub>)<sub>2</sub>.
2026 · cited by 2
Paper [8] demonstrates a supersolid state where broken spin rotational symmetry yields a gapless lowest-energy mode.
The paper trail · every fact has a biography
first checked04 Aug 2026
judged → SUPPORTED · 8804 Aug 2026
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