Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Francesco M. D. Pellegrino"'
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-10 (2022)
A supercurrent can flow across the junction between two superconductors without any applied voltage. Here, the authors show how non-magnetic impurities in these so-called Josephson junctions made from graphene reduce the critical current, the maximum
Externí odkaz:
https://doaj.org/article/d6fa12dbf109411cbf4f2e520bb46d8b
Autor:
Alberto Mercurio, Gian Marcello Andolina, Francesco M. D. Pellegrino, Omar Di Stefano, Pablo Jarillo-Herrero, Claudia Felser, Frank H. L. Koppens, Salvatore Savasta, Marco Polini
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013303 (2024)
We introduce a gauge-invariant model of planar, square molecules coupled to a quantized spatially varying cavity electromagnetic vector potential A[over ̂](r). Specifically, we choose a temporally chiral cavity hosting a uniform magnetic field B[ove
Externí odkaz:
https://doaj.org/article/8193ac614239421489d6adb7ee689895
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
High-mobility graphene can play host to exciton polaritons—hybrid matter–light particles, which can form into a state known as a quantum Hall polariton fluid. Here, the authors show that electron–electron interactions can act to destabilize thi
Externí odkaz:
https://doaj.org/article/0b25487a181d46efaebf0c0e2e089709
Publikováno v:
Communications Physics, Vol 3, Iss 1, Pp 1-8 (2020)
Short ballistic graphene Josephson junctions sustain superconducting current with a non-sinusoidal current-phase relation up to a critical current threshold. The current-phase relation, arising from proximitized superconductivity, is gate-voltage tun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e13a64e8db31b396be73052e68ac775
http://link.springer.com/article/10.1038/s42005-019-0275-9
http://link.springer.com/article/10.1038/s42005-019-0275-9
Autor:
Gian Marcello Andolina, Allan H. MacDonald, Francesco M. D. Pellegrino, Marco Polini, Vittorio Giovannetti
Publikováno v:
Physical Review B 102 (2020). doi:10.1103/PhysRevB.102.125137
info:cnr-pdr/source/autori:Andolina G.M.; Pellegrino F.M.D.; Giovannetti V.; Macdonald A.H.; Polini M./titolo:Theory of photon condensation in a spatially varying electromagnetic field/doi:10.1103%2FPhysRevB.102.125137/rivista:Physical Review B/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:102
Physical Review B
info:cnr-pdr/source/autori:Andolina G.M.; Pellegrino F.M.D.; Giovannetti V.; Macdonald A.H.; Polini M./titolo:Theory of photon condensation in a spatially varying electromagnetic field/doi:10.1103%2FPhysRevB.102.125137/rivista:Physical Review B/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:102
Physical Review B
The realization of equilibrium superradiant quantum phases (photon condensates) in a spatially-uniform quantum cavity field is forbidden by a "no-go" theorem stemming from gauge invariance. We here show that the no-go theorem does not apply to spatia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77015a29481d19562fb7ecd3e4aa27b7
http://arxiv.org/abs/2005.09088
http://arxiv.org/abs/2005.09088
We investigate critical current noise in short ballistic graphene Josephson junctions in the open-circuit gate-voltage limit within the McWorther model. We find flicker noise in a wide frequency range and discuss the temperature dependence of the noi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af11ba719c8d0fbbb46c91565a7a465b
Graphene-based devices show $1/f$ low-frequency noise in several electronic transport properties, such as mobility and charge carrier concentration. The recent outburst of experimental studies on graphene-based devices integrated into circuit quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4eb694500062da4b3e45ff8d0d30b6b
Autor:
Gian Marcello Andolina, Vittorio Giovannetti, Allan H. MacDonald, Marco Polini, Francesco M. D. Pellegrino
Publikováno v:
Physical Review B 100 (2019): 121109-1–121109-6. doi:10.1103/PhysRevB.100.121109
info:cnr-pdr/source/autori:Andolina G.M.; Pellegrino F.M.D.; Giovannetti V.; Macdonald A.H.; Polini M./titolo:Cavity quantum electrodynamics of strongly correlated electron systems: A no-go theorem for photon condensation/doi:10.1103%2FPhysRevB.100.121109/rivista:Physical Review B/anno:2019/pagina_da:121109-1/pagina_a:121109-6/intervallo_pagine:121109-1–121109-6/volume:100
info:cnr-pdr/source/autori:Andolina G.M.; Pellegrino F.M.D.; Giovannetti V.; Macdonald A.H.; Polini M./titolo:Cavity quantum electrodynamics of strongly correlated electron systems: A no-go theorem for photon condensation/doi:10.1103%2FPhysRevB.100.121109/rivista:Physical Review B/anno:2019/pagina_da:121109-1/pagina_a:121109-6/intervallo_pagine:121109-1–121109-6/volume:100
In spite of decades of work it has remained unclear whether or not superradiant quantum phases, referred to here as photon condensates, can occur in equilibrium. In this Rapid Communication, we first show that when a nonrelativistic quantum many-body
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7b19b8dc7e9ba7ff534e79219056746
https://doi.org/10.1103/physrevb.100.121109
https://doi.org/10.1103/physrevb.100.121109
Publikováno v:
Proceedings, Vol 12, Iss 1, p 33 (2019)
Graphene Josephson Junctions (GJJ) in the regime of ballistic transport where current is carried by discrete energy states of Andreev-reflected coherent electron-hole pairs have been recently demonstrated in graphene heterostructures. Due to the non-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c239b8c0b11af6e21e7415f4c4283b5c
https://doi.org/10.3390/proceedings2019012033
https://doi.org/10.3390/proceedings2019012033
Autor:
Francesco M. D. Pellegrino, Giuseppe G. N. Angilella, A. Magna, Giuseppe Falci, G. Palma, Elisabetta Paladino
Publikováno v:
Proceedings, Vol 12, Iss 1, p 1 (2019)
The 11th Italian Quantum Information Science conference (IQIS 2018) took place in Catania, Italy, at the Monastero dei Benedettini, from September 17 to 20, 2018. IQIS 2018 was organized by the Department of Physics and Astronomy “E. Majorana” of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93545df51f4bb34b4c594e5763e1c60a
https://www.mdpi.com/2504-3900/12/1/1
https://www.mdpi.com/2504-3900/12/1/1