The location of the critical point on the infinite-volume line
may be estimated from the peak in the curvature susceptibility
[2
,
1
,
11
,
192
,
129
,
90
], or the node susceptibility
[75
,
76
], as well as higher cumulants of
[48
]. In [14
], it was suggested that one may alternatively estimate
by looking at the behaviour of the entropy exponent
, approaching
from the elongated phase. More recently, Catterall et al [77
] have used the fluctuations
of the local volume
around singular vertices as an order parameter.
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Discrete Approaches to Quantum Gravity in Four Dimensions
Renate Loll http://www.livingreviews.org/lrr-1998-13 © Max-Planck-Gesellschaft. ISSN 1433-8351 Problems/Comments to livrev@aei-potsdam.mpg.de |