15 citations · 34 across the 10 of their papers we have counts for
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cond-mat.dis-nn2018★ 1 cited
Effects of dynamical paths on the energy gap and the corrections to free energy in path integrals of mean-field quantum spin systems
Yang Wei Koh
In current studies of mean-field quantum spin systems, much attention is placed on the calculation of the ground-state energy and the excitation gap, especially the latter which pl…
cond-mat.stat-mech2018★ 1 cited
Non-static effects in ordered and disordered quantum spin systems I: theoretical formulation, energy gap and non-extensive terms of ground-state energy of the ferromagnetic Ising model in a transverse field
Yang Wei Koh
In the path integral formulation of the partition function of quantum spin models, most current treatments employ the so-called static approximation to simplify the process of summ…