Holographic zero sound for N=2 SCFTs in 4d
We build up the notion of metallic holography for N=2 SCFTs in four dimensions, in the presence of a finite U(1) chemical potential. We compute two point correlation functions and study their properties in the regime of low frequency and low momentum. The color sector reveals gapless excitations, on...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321324003262 |
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| _version_ | 1841550714774487040 |
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| author | Dibakar Roychowdhury |
| author_facet | Dibakar Roychowdhury |
| author_sort | Dibakar Roychowdhury |
| collection | DOAJ |
| description | We build up the notion of metallic holography for N=2 SCFTs in four dimensions, in the presence of a finite U(1) chemical potential. We compute two point correlation functions and study their properties in the regime of low frequency and low momentum. The color sector reveals gapless excitations, one of which propagates with a finite phase velocity while the other mode attenuates through scattering. The flavour sector, on the other hand, reveals spectrum that contains quasiparticle excitations which propagate with a definite phase velocity together with modes that propagate with a finite group velocity which quantum attenuates quite similar in spirit as that of Landau's zero sound modes. We also compute associated AC conductivities, which exhibit different characteristics for different (color and flavour) sectors of N=2 SCFTs. |
| format | Article |
| id | doaj-art-c20281a67fdf42f49688aa56fa843f7a |
| institution | Kabale University |
| issn | 0550-3213 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj-art-c20281a67fdf42f49688aa56fa843f7a2025-01-10T04:37:49ZengElsevierNuclear Physics B0550-32132025-01-011010116760Holographic zero sound for N=2 SCFTs in 4dDibakar Roychowdhury0Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, IndiaWe build up the notion of metallic holography for N=2 SCFTs in four dimensions, in the presence of a finite U(1) chemical potential. We compute two point correlation functions and study their properties in the regime of low frequency and low momentum. The color sector reveals gapless excitations, one of which propagates with a finite phase velocity while the other mode attenuates through scattering. The flavour sector, on the other hand, reveals spectrum that contains quasiparticle excitations which propagate with a definite phase velocity together with modes that propagate with a finite group velocity which quantum attenuates quite similar in spirit as that of Landau's zero sound modes. We also compute associated AC conductivities, which exhibit different characteristics for different (color and flavour) sectors of N=2 SCFTs.http://www.sciencedirect.com/science/article/pii/S0550321324003262 |
| spellingShingle | Dibakar Roychowdhury Holographic zero sound for N=2 SCFTs in 4d Nuclear Physics B |
| title | Holographic zero sound for N=2 SCFTs in 4d |
| title_full | Holographic zero sound for N=2 SCFTs in 4d |
| title_fullStr | Holographic zero sound for N=2 SCFTs in 4d |
| title_full_unstemmed | Holographic zero sound for N=2 SCFTs in 4d |
| title_short | Holographic zero sound for N=2 SCFTs in 4d |
| title_sort | holographic zero sound for n 2 scfts in 4d |
| url | http://www.sciencedirect.com/science/article/pii/S0550321324003262 |
| work_keys_str_mv | AT dibakarroychowdhury holographiczerosoundforn2scftsin4d |