Effects of energy extensivity on the quantum phases of long-range interacting systems
We investigate the ground state properties of one-dimensional hard-core bosons interacting via a variable long-range potential using the density matrix renormalization group. We show that restoring energy extensivity in the system, which is done by rescaling the interaction potential with a suitable...
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| Hauptverfasser: | , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
20 April 2021
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| In: |
Physical review
Year: 2021, Jahrgang: 103, Heft: 15, Pages: 1-12 |
| ISSN: | 2469-9969 |
| DOI: | 10.1103/PhysRevB.103.155139 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevB.103.155139 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.103.155139 
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| Verfasserangaben: | T. Botzung, D. Hagenmüller, G. Masella, J. Dubail, N. Defenu, A. Trombettoni, and G. Pupillo |
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| 520 | |a We investigate the ground state properties of one-dimensional hard-core bosons interacting via a variable long-range potential using the density matrix renormalization group. We show that restoring energy extensivity in the system, which is done by rescaling the interaction potential with a suitable size-dependent factor known as Kac's prescription, has a profound influence on the low-energy properties in the thermodynamic limit. While an insulating phase is found in the absence of Kac's rescaling, the latter leads to a new metallic phase that does not fall into the conventional Luttinger liquid paradigm. We discuss a scheme for the observation of this new phase using cavity-mediated long-range interactions with cold atoms. Our findings raise fundamental questions on how to study the thermodynamics of long-range interacting quantum systems. | ||
| 700 | 1 | |a Hagenmüller, D. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Masella, G. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Dubail, J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Defenu, Nicolò |d 1988- |e VerfasserIn |0 (DE-588)114515641X |0 (DE-627)1005468419 |0 (DE-576)495634239 |4 aut | |
| 700 | 1 | |a Trombettoni, Andrea |e VerfasserIn |0 (DE-588)1234501716 |0 (DE-627)1759334863 |4 aut | |
| 700 | 1 | |a Pupillo, G. |e VerfasserIn |4 aut | |
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