Suppression of Shot Noise in a Dirty Marginal Fermi Liquid
Fuente:
arXiv
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866910549649915904 |
|---|---|
| author | Wu, Tsz Chun Foster, Matthew S. |
| author_facet | Wu, Tsz Chun Foster, Matthew S. |
| contents | We study shot noise in a two-dimensional, disordered marginal Fermi liquid (MFL) driven out of equilibrium. We consider electrons with Planckian dissipation on the Fermi surface coupled to quantum-critical bosons in the presence of disorder. In the non-interacting and strong electron-boson drag limits, MFL effects disappear and our theory reproduces known results. For the case where the bosons remain in equilibrium, inelastic scattering strongly suppresses the noise by dissipating the injected energy. Interestingly, we find that MFL effects do play a role in this regime, and give a weak enhancement on top of the otherwise strong suppression. Our results suggest that shot noise can be strongly suppressed in quantum-critical systems, and this scenario may be relevant to recent measurements in a heavy-fermion strange metal. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_03071 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Suppression of Shot Noise in a Dirty Marginal Fermi Liquid Wu, Tsz Chun Foster, Matthew S. Strongly Correlated Electrons Disordered Systems and Neural Networks Mesoscale and Nanoscale Physics We study shot noise in a two-dimensional, disordered marginal Fermi liquid (MFL) driven out of equilibrium. We consider electrons with Planckian dissipation on the Fermi surface coupled to quantum-critical bosons in the presence of disorder. In the non-interacting and strong electron-boson drag limits, MFL effects disappear and our theory reproduces known results. For the case where the bosons remain in equilibrium, inelastic scattering strongly suppresses the noise by dissipating the injected energy. Interestingly, we find that MFL effects do play a role in this regime, and give a weak enhancement on top of the otherwise strong suppression. Our results suggest that shot noise can be strongly suppressed in quantum-critical systems, and this scenario may be relevant to recent measurements in a heavy-fermion strange metal. |
| title | Suppression of Shot Noise in a Dirty Marginal Fermi Liquid |
| topic | Strongly Correlated Electrons Disordered Systems and Neural Networks Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2312.03071 |