Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Pietro Maria Bonetti"'
Publikováno v:
Physical Review Research, Vol 3, Iss 1, p 013031 (2021)
The Aubry transition between sliding and pinned phases, driven by the competition between two incommensurate length scales, represents a paradigm that is applicable to a large variety of microscopically distinct systems. Despite previous theoretical
Externí odkaz:
https://doaj.org/article/6e6601bd8dfd4790ac678263c957c96b
Autor:
Pietro Maria Bonetti
Publikováno v:
Physical Review B. 106
We derive Ward identities for fermionic systems exhibiting a gauge symmetry that gets globally broken. In particular, we focus on the relation that connects the gauge field response functions to the transverse susceptibilities of the order parameter.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7badca45e635be03df2cb26905c23612
https://doi.org/10.1103/physrevb.106.155105
https://doi.org/10.1103/physrevb.106.155105
Autor:
Pietro Maria Bonetti, Walter Metzner
Publikováno v:
Physical Review B. 105
We analyze the properties of magnons in metallic electron systems with spiral magnetic order. Our analysis is based on the random phase approximation for the susceptibilities of tight binding electrons with a local Hubbard interaction in two or three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c76b235dc3134f446e3188a2841acc13
https://doi.org/10.1103/physrevb.105.134426
https://doi.org/10.1103/physrevb.105.134426
Autor:
Pietro Maria Bonetti
Publikováno v:
Physical Review B. 102
We present a consistent fusion of functional renormalization group and mean-field theory which explicitly introduces a bosonic field via a Hubbard-Stratonovich transformation at the critical scale, at which the order sets in. We show that a minimal t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4c5b603fb4bf01deeb64c790d5b5d60
https://doi.org/10.1103/physrevb.102.235160
https://doi.org/10.1103/physrevb.102.235160
The Aubry transition between sliding and pinned phases, driven by the competition between two incommensurate length scales, represents a paradigm that is applicable to a large variety of microscopically distinct systems. Despite previous theoretical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae68906521021445e006962f0c2614e5
http://arxiv.org/abs/2008.12699
http://arxiv.org/abs/2008.12699
We show that antiferromagnetic spin-density wave order in the two-dimensional Hubbard model yields a drop of the charge carrier density as observed in recent transport measurements for cuprate superconductors in high magnetic fields on entering the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b1218394045f93f62ff2c3a90c8404e
http://arxiv.org/abs/2002.02786
http://arxiv.org/abs/2002.02786
We analyze the interplay of antiferromagnetism and pairing in the two-dimensional Hubbard model with a moderate repulsive interaction. Coupled charge, magnetic, and pairing fluctuations above the energy scale of spontaneous symmetry breaking are trea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57e6793f627533f5d45c9b39bc5ec49a