We study the quantum tricriticality of d dimensional transverse Ising like systems by means of a renormalization group approach focusing on static susceptibility. This allows to obtain the phase diagram with a clear locations of the critical lines ending in the conventional quantum critical points and in the quantum tricritical oneand the tricritical line. We determine also the critical and the tricritical shift exponents close to the corresponding ground state instabilities.
Quantum tricriticality in transverse Ising-like systems / M. T., Mercaldo; I., Rabuffo; A., Naddeo; CARAMICO D'AURIA, Alvaro; L., De Cesare. - In: THE EUROPEAN PHYSICAL JOURNAL. B, CONDENSED MATTER PHYSICS. - ISSN 1434-6028. - STAMPA. - 84:(2011), pp. 371-379. [10.1140/epjb/e2011-20621-0]
Quantum tricriticality in transverse Ising-like systems
CARAMICO D'AURIA, ALVARO;
2011
Abstract
We study the quantum tricriticality of d dimensional transverse Ising like systems by means of a renormalization group approach focusing on static susceptibility. This allows to obtain the phase diagram with a clear locations of the critical lines ending in the conventional quantum critical points and in the quantum tricritical oneand the tricritical line. We determine also the critical and the tricritical shift exponents close to the corresponding ground state instabilities.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
