Interaction-induced particle-hole symmetry breaking and fractional exclusion statistics
Sign Up to like & getrecommendations! Published in 2022 at "National Science Review"
DOI: 10.1093/nsr/nwac027
Abstract: Abstract Quantum statistics plays a fundamental role in the laws of nature. Haldane fractional exclusion statistics (FES) generalizes the Pauli exclusion statistics, and can emerge in the properties of elementary particles and hole excitations of… read more here.
Keywords: symmetry breaking; particle hole; hole symmetry; exclusion statistics ... See more keywords
Composite fermion nonlinear sigma models
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DOI: 10.1103/physrevb.104.125119
Abstract: We study the integer quantum Hall plateau transition using composite fermion mean-field theory. We show that the topological $\theta = \pi$ term in the associated nonlinear sigma model [P. Kumar et al., Phys. Rev. B… read more here.
Keywords: hole symmetry; composite fermion; particle hole; nonlinear sigma ... See more keywords
Topological invariants for Floquet-Bloch systems with chiral, time-reversal, or particle-hole symmetry
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DOI: 10.1103/physrevb.97.045140
Abstract: We introduce $\mathbb Z_2$-valued bulk invariants for symmetry-protected topological phases in $2+1$ dimensional driven quantum systems. These invariants adapt the $W_3$-invariant, expressed as a sum over degeneracy points of the propagator, to the respective symmetry… read more here.
Keywords: hole symmetry; floquet bloch; particle hole; time reversal ... See more keywords
Topological phase transition underpinning particle-hole symmetry in the Halperin-Lee-Read theory
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DOI: 10.1103/physrevb.98.115105
Abstract: Long wavelength descriptions of a half-filled lowest Landau level ($\nu = 1/2$) must be consistent with the experimental observation of particle-hole (PH) symmetry. The traditional description of the $\nu=1/2$ state pioneered by Halperin, Lee and… read more here.
Keywords: topological phase; hole symmetry; particle hole; symmetry ... See more keywords
Particle-hole symmetry reveals failed superconductivity in the metallic phase of two-dimensional superconducting films
Sign Up to like & getrecommendations! Published in 2017 at "Science Advances"
DOI: 10.1126/sciadv.1700612
Abstract: Hall effect studies in disordered superconducting films reveal particle-hole symmetry in the enigmatic quantum metallic phase. Electrons confined to two dimensions display an unexpected diversity of behaviors as they are cooled to absolute zero. Noninteracting… read more here.
Keywords: phase; metallic phase; superconducting films; hole symmetry ... See more keywords