2003/06/21 by A. Caramico D'Auria, Alvaro CaramicoD'Auria, L. De Cesare +2
Medicine · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Dynamics (music) #Ising model #Medicine #Physics #Quantum #Quantum critical point #Quantum many-body systems #Quantum mechanics #Quantum phase transition #Statistical physics #Theoretical and Computational Physics #Transverse plane #cond-mat.stat-mech
paper · pdf · doi:10.1016/s0378-4371(03)00403-5
36 pages, 2 figures, accepted in Physica A
openalex publication_date 2003/06/21 · arxiv created 2003/06/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The low-temperature properties and crossover phenomena of d-dimensional transverse Ising-like systems within the influence domain of the quantum critical point are investigated solving the appropriate one-loop renormalization group equations. The phase diagram is obtained near and at d=3 and several sets of critical exponents are determined which describe different responses of a system to quantum fluctuations according to the way of approaching the quantum critical point. The results are in remarkable agreement with experiments for a wide variety of compounds exhibiting a quantum phase transition, as the ferroelectric oxides and other displacive systems.