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Off-diagonal long-range order in Little's model (1972)

Wulf, A. ; Fernández, J. F.

Springer

Journal of low temperature physics 7 (1972), S. 119-127

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ISSN: 1573-7357

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract Various authors have shown, using nonrigorous arguments, that the one-dimensional model of Little cannot exhibit off-diagonal long-range order (ODLRO) at nonzero temperatures. Hohenberg has proven that ODLRO cannot exist at nonzero temperatures in any one- or two-dimensionalhomogeneous system. Bychkovet al. have shown that the nonhomogeneity in the Little model may produce peculiar forms of ODLRO. Using Bogoliubov's inequality, we prove that such ODLRO vanishes at nonzero temperatures.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00629123

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