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Volumn 303, Issue 5663, 2004, Pages 1490-1494

Deconfined Quantum Critical Points

Author keywords

[No Author keywords available]

Indexed keywords

DEGREES OF FREEDOM (MECHANICS); ELECTRONS; PHASE TRANSITIONS;

EID: 1542317587     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1091806     Document Type: Article
Times cited : (1613)

References (27)
  • 4
    • 1542340270 scopus 로고    scopus 로고
    • note
    • The Landau paradigm is also known to fail near 1D quantum critical points (or 2D classical critical points), such as the model considered by Haldane (25). This failure is caused by strong fluctuations in a low-dimensional system, a mechanism that does not generalize to higher dimensions.
  • 12
    • 25944450667 scopus 로고
    • S. Chakravarty, B. I. Halperin, D. R. Nelson, Phys. Rev. B 39, 2344 (1989). These authors correctly noted that the Berry phases could at least be neglected in the Néel phase, but perhaps not beyond it; their critical theory applies to square lattice models with the spin S an even integer (but not to S half-odd-integer) and to dimerized or double-layer antiferromagnets with an even number of S = 1/2 spins per unit cell [such as the model in (13)].
    • (1989) Phys. Rev. B , vol.39 , pp. 2344
    • Chakravarty, S.1    Halperin, B.I.2    Nelson, D.R.3
  • 15
    • 30244458887 scopus 로고
    • A. V. Chubukov, S. Sachdev, J. Ye, Phys. Rev. B 49, 11919 (1994). Speculations on the dangerous irrelevancy of Berry phase effects appeared here.
    • (1994) Phys. Rev. B , vol.49 , pp. 11919
    • Chubukov, A.V.1    Sachdev, S.2    Ye, J.3
  • 16
    • 1542280019 scopus 로고    scopus 로고
    • note
    • z using expansions in 4 - D (D is the dimension of spacetime) and in 1/N. The former yielded a first-order transition and the latter second-order transition. Subsequent duality and numerical studies (17, 20) have shown the transition is second-order in D = 3 for N = 1,2.
  • 18
    • 1542310153 scopus 로고    scopus 로고
    • note
    • Scaling analyses, generalizations, and physical consequences appear in the supporting material on Science Online.
  • 27
    • 1542280025 scopus 로고    scopus 로고
    • note
    • This research was generously supported by NSF under grants DMR-0213282, DMR-0308945 (T.S.), DMR-9985255 (L.B.), DMR-0098226 (S.S.), and DMR-0210790 and PHY-9907949 (M.P.A.F.). We also acknowledges funding from the NEC Corporation (T.S.), the Packard Foundation (L.B.), the Alfred P. Sloan Foundation (T.S. and L.B.), a Pappalardo Fellowship (A.V.), and an award from The Research Corporation (T.S.). We thank the Aspen Center for Physics for hospitality.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.