Experimental Observation of the Ground-State Geometric Phase of Three-Spin XY Model
The geometric phase has become a fundamental concept in many fields of physics since it was revealed. Recently, the study of the geometric phase has attracted considerable attention in the context of quantum phase transition, where the ground state properties of the system experience a dramatic chan...
Saved in:
Published in | Chinese physics letters Vol. 33; no. 6; pp. 1 - 5 |
---|---|
Main Author | |
Format | Journal Article |
Language | English |
Published |
01.06.2016
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The geometric phase has become a fundamental concept in many fields of physics since it was revealed. Recently, the study of the geometric phase has attracted considerable attention in the context of quantum phase transition, where the ground state properties of the system experience a dramatic change induced by a variation of an external parameter. In this work, we experimentally measure the ground-state geometric phase of the three-spin XY model by utilizing the nuclear magnetic resonance technique. The experimental results indicate that the geometric phase could be used as a fingerprint of the ground-state quantum phase transition of many-body systems. |
---|---|
Bibliography: | Hui Zhou, Zhao-Kai Li, Heng-Yan Wang, Hong-Wei Chen, Xin-Hua Peng, Jiang-Feng Du (1Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026;2 Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026 3 High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031) 11-1959/O4 The geometric phase has become a fundamental concept in many fields of physics since it was revealed. Recently, the study of the geometric phase has attracted considerable attention in the context of quantum phase transition, where the ground state properties of the system experience a dramatic change induced by a variation of an external parameter. In this work, we experimentally measure the ground-state geometric phase of the three-spin XY model by utilizing the nuclear magnetic resonance technique. The experimental results indicate that the geometric phase could be used as a fingerprint of the ground-state quantum phase transition of many-body systems. |
ISSN: | 0256-307X 1741-3540 |
DOI: | 10.1088/0256-307X/33/6/060301 |