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We show numerically that the `deconfined' quantum critical point between the N\'eel antiferromagnet and the columnar valence-bond-solid, for a square lattice of spin-1/2s, has an emergent $SO(5)$ symmetry.
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M. B. Hastings, Lieb-Schultz-Mattis in higher dimensions
2004
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T. Senthil, L. Balents, S. Sachdev, A. Vishwanath, and M. P. A. Fisher, Deconfined Criticality Critically Defined
2005
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A. Tanaka and X. Hu, Many-Body Spin Berry Phases Emerging from the π \pi -Flux State: Competition between Antiferromagnetism and the Valence-Bond-Solid State,
2005
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2006
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2007
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R. K. Kaul, Quantum criticality in S U ( 3 ) SU(3) and S U ( 4 ) SU(4) antiferromagnets
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2013
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2013
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F. J. Jiang, M. Nyfeler, S. Chandrasekharan, and U. J. Wiese, From an antiferromagnet to a valence bond solid: evidence for a first-order phase transition
2008
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G. Misguich, V. Pasquier, and F. Alet, Correlations and order parameter at a Coulomb-crystal phase transition in a three-dimensional dimer model
2008
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R. K. Kaul and S. Sachdev, Quantum criticality of U ( 1 ) U(1) gauge theories with fermionic and bosonic matter in two spatial dimensions
2008
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M. A. Metlitski, M. Hermele, T. Senthil and M. P. A. Fisher, Monopoles in C P N − 1 CP^{N-1} model via the state-operator correspondence
2008
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J. Lou, A. Sandvik and N. Kawashima, Antiferromagnetic to valence-bond-solid transitions in two-dimensional S U ( N ) SU(N) Heisenberg models with multispin interactions
2009
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A. W. Sandvik, Continuous Quantum Phase Transition between an Antiferromagnet and a Valence-Bond Solid in Two Dimensions: Evidence for Logarithmic Corrections to Scaling
2010
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A. Banerjee, K. Damle, and F. Alet, Impurity spin texture at a deconfined quantum critical point
2010
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M. S. Block, R. G. Melko, and R. K. Kaul, Fate of C P n − 1 CP^{n-1} Fixed Points with q q Monopoles
2013
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C. Xu and A. W. W. Ludwig, Nonperturbative Effects of a Topological Theta Term on Principal Chiral Nonlinear Sigma Models in 2+1 Dimensions
2013
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A. Nahum, J. T. Chalker, P. Serna, M. Ortuño and A. M. Somoza, Phase transitions in 3D loop models and the C P n − 1 CP^{n-1} sigma model
2013
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F. Kos, D. Poland, and D. Simmons-Duffin, Bootstrapping the O ( N ) O(N) vector models
2014
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2015
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