Abstract
We examine the quantum phase transition at zero temperature between paramagnetic and spin-glass-ordered phases as the strength of a uniform transverse field, Γ, is varied. At the critical point, Γc, the spin autocorrelation function decays with time, t, as t-2. As the transition is approached from the paramagnetic phase the nonlinear susceptibility diverges as {ln(Γ-Γc)/(Γ-Γc)}1/2.
Original language | English (US) |
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Pages (from-to) | 3147-3150 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 70 |
Issue number | 20 |
DOIs | |
State | Published - 1993 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy