Holographic insulator/superconductor phase transitions with excited states
| Autor: | Dong Wang, Jiliang Jing, Qiyuan Pan, Liang OuYang, Xiongying Qiao, Mengjie Wang |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Superconductivity High Energy Physics - Theory Phase transition Condensed matter physics General Physics and Astronomy FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) 01 natural sciences AdS black hole General Relativity and Quantum Cosmology AdS/CFT correspondence High Energy Physics - Theory (hep-th) Critical point (thermodynamics) Excited state 0103 physical sciences Soliton 010306 general physics Ground state 010303 astronomy & astrophysics |
| Popis: | We construct a family of solutions of the holographic insulator/superconductor phase transitions with the excited states in the AdS soliton background by using both the numerical and analytical methods. The interesting point is that the improved Sturm-Liouville method can not only analytically investigate the properties of the phase transition with the excited states, but also the distributions of the condensed fields in the vicinity of the critical point. We observe that, regardless of the type of the holographic model, the excited state has a higher critical chemical potential than the corresponding ground state, and the difference of the dimensionless critical chemical potential between the consecutive states is around 2.4, which is different from the finding of the metal/superconductor phase transition in the AdS black hole background. Furthermore, near the critical point, we find that the phase transition of the systems is of the second order and a linear relationship exists between the charge density and chemical potential for all the excited states in both s-wave and p-wave insulator/superconductor models. 23 pages, 8 figure, 6 tables |
| Databáze: | OpenAIRE |
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