Bibliographic Details
| Title: |
Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mort Insulators. |
| Authors: |
Endres, M., Cheneau, M., Fukuhara, T., Weitenberg, C., Schauß, P., Gross, C., Mazza, L., Bañuls, M. C., Pollet, L., Bloch, I., Kuhr, S. |
| Source: |
Science (pre-March 2025). 10/14/2011, Vol. 334 Issue 6053, p200-203. 4p. |
| Subjects: |
Physics research, Scientific observation, Physics -- Methodology, Optical lattices, Ultracold neutrons, Quantum theory, Particles (Nuclear physics), Holes (Electron deficiencies) |
| Abstract: |
Quantum phases of matter are characterized by the underlying correlations of the many-body system. Although this is typically captured by a local order parameter, it has been shown that a broad class of many-body systems possesses a hidden nonlocal order. In the case of bosonic Mott insulators, the ground state properties are governed by quantum fluctuations in the form of correlated particle-hole pairs that lead to the emergence of a nonlocal string order in one dimension. By using high-resolution imaging of low-dimensional quantum gases in an optical lattice, we directly detect these pairs with single-site and single-particle sensitivity and observe string order in the one-dimensional case. [ABSTRACT FROM AUTHOR] |
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| Database: |
Psychology and Behavioral Sciences Collection |
