This title appears in the Scientific Report :
2021
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.103.155139 in citations.
Please use the identifier: http://hdl.handle.net/2128/30002 in citations.
Effects of energy extensivity on the quantum phases of long-range interacting systems
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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Personal Name(s): | Botzung, T. (Corresponding author) |
---|---|
Hagenmüller, D. / Masella, G. / Dubail, J. / Defenu, N. / Trombettoni, A. / Pupillo, G. | |
Contributing Institute: |
Theoretische Nanoelektronik; IAS-3 Theoretische Nanoelektronik; PGI-2 |
Published in: | Physical review / B, 103 (2021) 15, S. 155139 |
Imprint: |
Woodbury, NY
Inst.
2021
|
DOI: |
10.1103/PhysRevB.103.155139 |
Document Type: |
Journal Article |
Research Program: |
Quantum Networking |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/30002 in citations.
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. |