TY - JOUR
T1 - Fidelity susceptibility and Loschmidt echo for generic paths in a three-spin interacting transverse Ising model
AU - Rajak, Atanu
AU - Divakaran, Uma
PY - 2014/4
Y1 - 2014/4
N2 - We study the effect of the presence of different types of critical points, such as ordinary critical points, multicritical points and quasicritical points, along different paths on the fidelity susceptibility and Loschmidt echo of a three-spin interacting transverse Ising chain using a method that does not involve the language of tensors. We find that the scaling of the fidelity susceptibility and Loschmidt echo with the system size at these special critical points of the model studied is in agreement with the known results, thus supporting our method.
AB - We study the effect of the presence of different types of critical points, such as ordinary critical points, multicritical points and quasicritical points, along different paths on the fidelity susceptibility and Loschmidt echo of a three-spin interacting transverse Ising chain using a method that does not involve the language of tensors. We find that the scaling of the fidelity susceptibility and Loschmidt echo with the system size at these special critical points of the model studied is in agreement with the known results, thus supporting our method.
KW - entanglement in extended quantum systems (theory)
KW - ladders and planes (theory)
KW - quantum phase transitions (theory)
KW - spin chains
UR - https://www.scopus.com/pages/publications/84899634995
U2 - 10.1088/1742-5468/2014/04/P04023
DO - 10.1088/1742-5468/2014/04/P04023
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AN - SCOPUS:84899634995
SN - 1742-5468
VL - 2014
JO - Journal of Statistical Mechanics: Theory and Experiment
JF - Journal of Statistical Mechanics: Theory and Experiment
IS - 4
M1 - P04023
ER -