| Title: | Quantum chaos in the extended Dicke model |
|---|
| Authors: | ID Wang, Qian (Author) |
|---|
| Files: |  Quantum_chaos_in_the_extended_Dicke_model_Wang_2022.pdf (3,46 MB)
MD5: 7C433335B6BB4B0392466F0B1E000A5D
 https://doi.org/10.3390/e24101415
|
|---|
| Language: | English |
|---|
| Work type: | Scientific work |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | UM - University of Maribor
|
|---|
| Abstract: | We systematically study the chaotic signatures in a quantum many-body system consisting of an ensemble of interacting two-level atoms coupled to a single-mode bosonic field, the so-called extended Dicke model. The presence of the atom–atom interaction also leads us to explore how the atomic interaction affects the chaotic characters of the model. By analyzing the energy spectral statistics and the structure of eigenstates, we reveal the quantum signatures of chaos in the model and discuss the effect of the atomic interaction. We also investigate the dependence of the boundary of chaos extracted from both eigenvalue-based and eigenstate-based indicators on the atomic interaction. We show that the impact of the atomic interaction on the spectral statistics is stronger than on the structure of eigenstates. Qualitatively, the integrablity-to-chaos transition found in the Dicke model is amplified when the interatomic interaction in the extended Dicke model is switched on. |
|---|
| Keywords: | quantum chaos, extended Dicke model, spectral statistics, eigenstate structure |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 15.09.2022 |
|---|
| Article acceptance date: | 30.09.2022 |
|---|
| Publication date: | 04.10.2022 |
|---|
| Publisher: | MDPI |
|---|
| Year of publishing: | 2022 |
|---|
| Number of pages: | Str. 1-13 |
|---|
| Numbering: | Letn. 24, Št. 10, št. članka 1415 |
|---|
| PID: | 20.500.12556/DKUM-86147  |
|---|
| UDC: | 530.145 |
|---|
| ISSN on article: | 1099-4300 |
|---|
| COBISS.SI-ID: | 141829635 |
|---|
| DOI: | 10.3390/e24101415 |
|---|
| Publication date in DKUM: | 13.10.2023 |
|---|
| Views: | 345 |
|---|
| Downloads: | 24 |
|---|
| Metadata: |    |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
