N ov 1 99 9 Finite size scaling investigations in the quantum φ 4 - model with long - range interaction
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چکیده
In this paper, we study in details the critical behavior of theO(n) quantum φ4 model with long-range interaction decaying with the distances r by a power law as r−d−σ in the large n-limit. The zero-temperature critical behavior is discussed. Its alteration by the finite temperature and/or finite sizes in the space is studied. The scaling behaviours are studied in different regimes depending upon whether the finite temperature or the finite sizes of the system is leading. A number of results for the correlation length, critical amplitudes and the finite size shift, for different dimensionalities between the lower d< = σ/2 and the upper d> = 3σ/2 critical dimensions, are calculated. 05.30.-d, 05.70.Fh, 05.70.Jk, 64.60.-i Typeset using REVTEX 1
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ec 1 99 9 Finite - size scaling investigations in the quantum φ 4 - model with long - range interaction
In this paper, we study in details the critical behavior of theO(n) quantum φ4 model with long-range interaction decaying with the distances r by a power law as r−d−σ in the large n-limit. The zero-temperature critical behavior is discussed. Its alteration by the finite temperature and/or finite sizes in the space is studied. The scaling behaviours are studied in different regimes depending upo...
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تاریخ انتشار 1999