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Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mort Insulators.

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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]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Observation of Correlated Particle-Hole Pairs and String Order in Low-Dimensional Mort Insulators.
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  Data: <searchLink fieldCode="AR" term="%22Endres%2C+M%2E%22">Endres, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Cheneau%2C+M%2E%22">Cheneau, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Fukuhara%2C+T%2E%22">Fukuhara, T.</searchLink><br /><searchLink fieldCode="AR" term="%22Weitenberg%2C+C%2E%22">Weitenberg, C.</searchLink><br /><searchLink fieldCode="AR" term="%22Schauß%2C+P%2E%22">Schauß, P.</searchLink><br /><searchLink fieldCode="AR" term="%22Gross%2C+C%2E%22">Gross, C.</searchLink><br /><searchLink fieldCode="AR" term="%22Mazza%2C+L%2E%22">Mazza, L.</searchLink><br /><searchLink fieldCode="AR" term="%22Bañuls%2C+M%2E+C%2E%22">Bañuls, M. C.</searchLink><br /><searchLink fieldCode="AR" term="%22Pollet%2C+L%2E%22">Pollet, L.</searchLink><br /><searchLink fieldCode="AR" term="%22Bloch%2C+I%2E%22">Bloch, I.</searchLink><br /><searchLink fieldCode="AR" term="%22Kuhr%2C+S%2E%22">Kuhr, S.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 10/14/2011, Vol. 334 Issue 6053, p200-203. 4p.
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  Data: 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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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: 10/14/2011
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