Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Ruggero Vaia"'
Publikováno v:
Nanomaterials and Nanotechnology, Vol 1, Iss 1 (2011)
Effective quantum-state and entanglement transfer can be obtained by inducing a coherent dynamics in quantum wires with homogeneous intrawire interactions. This goal is accomplished by optimally tuning the coupling between the wire endpoints and the
Externí odkaz:
https://doaj.org/article/0e114bd619444bbbb871ba204411cadb
Publikováno v:
New Journal of Physics, Vol 17, Iss 8, p 083053 (2015)
We propose a method for acting on the spin state of a spin- $\frac{1}{2}$ localized particle, or qubit , by means of a magnetic signal effectively generated by the nearby transit of a magnetic soliton, there conveyed through a transmission line. We f
Externí odkaz:
https://doaj.org/article/a4a5b08ee75c453488ca1026b71f574b
Autor:
Luca Capriotti, Ruggero Vaia
Publikováno v:
The Journal of derivatives 28 (2020): 8–25. doi:10.3905/jod.2020.1.107
info:cnr-pdr/source/autori:Luca Capriotti, Ruggero Vaia/titolo:Physics and Derivatives: Effective-Potential Path-Integral Approximations of Arrow-Debreu Densities/doi:10.3905%2Fjod.2020.1.107/rivista:The Journal of derivatives/anno:2020/pagina_da:8/pagina_a:25/intervallo_pagine:8–25/volume:28
info:cnr-pdr/source/autori:Luca Capriotti, Ruggero Vaia/titolo:Physics and Derivatives: Effective-Potential Path-Integral Approximations of Arrow-Debreu Densities/doi:10.3905%2Fjod.2020.1.107/rivista:The Journal of derivatives/anno:2020/pagina_da:8/pagina_a:25/intervallo_pagine:8–25/volume:28
We show how effective-potential path-integrals methods, stemming on a simple and nice idea originally due to Feynman and successfully employed in Physics for a variety of quantum thermodynamics applications, can be used to develop an accurate and eas
Autor:
Ruggero Vaia
Publikováno v:
Physical Review B 101 (2020): 026401-1–026401-3. doi:10.1103/PhysRevB.101.026401
info:cnr-pdr/source/autori:Ruggero Vaia/titolo:Comment on "Magnetic structure and magnetization of z-axis helical Heisenberg antiferromagnets with XY anisotropy in high magnetic fields..."/doi:10.1103%2FPhysRevB.101.026401/rivista:Physical Review B/anno:2020/pagina_da:026401-1/pagina_a:026401-3/intervallo_pagine:026401-1–026401-3/volume:101
info:cnr-pdr/source/autori:Ruggero Vaia/titolo:Comment on "Magnetic structure and magnetization of z-axis helical Heisenberg antiferromagnets with XY anisotropy in high magnetic fields..."/doi:10.1103%2FPhysRevB.101.026401/rivista:Physical Review B/anno:2020/pagina_da:026401-1/pagina_a:026401-3/intervallo_pagine:026401-1–026401-3/volume:101
In two recent papers [Phys. Rev. B 99, 214438 (2019); Phys. Rev. B 96, 104405 (2017)], Johnston employs his unified molecular field theory to study the phase diagram of a classical one-dimensional magnet with exchange frustration in dependence of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=cnr_________::4ef46c32c1538145907ebcd7d69fad43
Publikováno v:
New journal of physics 17 (2015): 083053-01–083053-10. doi:10.1088/1367-2630/17/8/083053
info:cnr-pdr/source/autori:Alessandro Cuccoli; Davide Nuzzi; Ruggero Vaia; Paola Verrucchi/titolo:Getting through to a qubit by magnetic solitons/doi:10.1088%2F1367-2630%2F17%2F8%2F083053/rivista:New journal of physics/anno:2015/pagina_da:083053-01/pagina_a:083053-10/intervallo_pagine:083053-01–083053-10/volume:17
info:cnr-pdr/source/autori:Alessandro Cuccoli; Davide Nuzzi; Ruggero Vaia; Paola Verrucchi/titolo:Getting through to a qubit by magnetic solitons/doi:10.1088%2F1367-2630%2F17%2F8%2F083053/rivista:New journal of physics/anno:2015/pagina_da:083053-01/pagina_a:083053-10/intervallo_pagine:083053-01–083053-10/volume:17
We propose a method for acting on the spin state of a spin-1/2 localized particle, or `qubit', by means of a magnetic signal effectively generated by the nearby transit of a magnetic soliton, there conveyed through a transmission line. We first intro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bc283f42eff7c468499efaae57b8fd5
http://arxiv.org/abs/1505.02954
http://arxiv.org/abs/1505.02954
Autor:
Alessandro Cuccoli, Valerio Tognetti, Umberto Balucani, Paola Verrucchi, Ruggero Vaia, Luca Capriotti, Tommaso Roscilde, Andrea Fubini
Publikováno v:
Low temperature physics (Woodbury N.Y. Print) 31 (2005): 668–685. doi:10.1063/1.2008128
info:cnr-pdr/source/autori:Balucani U.; Capriotti L.; Cuccoli A.; Fubini A.; Tognetti V.; Roscilde T.; Vaia R.; Verrucchi P./titolo:Quantum Heisenberg antiferromagnets: a survey of the activity in Florence (Review)/doi:10.1063%2F1.2008128/rivista:Low temperature physics (Woodbury N.Y. Print)/anno:2005/pagina_da:668/pagina_a:685/intervallo_pagine:668–685/volume:31
info:cnr-pdr/source/autori:Balucani U.; Capriotti L.; Cuccoli A.; Fubini A.; Tognetti V.; Roscilde T.; Vaia R.; Verrucchi P./titolo:Quantum Heisenberg antiferromagnets: a survey of the activity in Florence (Review)/doi:10.1063%2F1.2008128/rivista:Low temperature physics (Woodbury N.Y. Print)/anno:2005/pagina_da:668/pagina_a:685/intervallo_pagine:668–685/volume:31
Over the years the research group in Firenze has produced a number of theoretical results concerning the statistical mechanics of quantum antiferromagnetic models, which range from the theory of two-magnon Raman scattering to the characterization of
Autor:
Ruggero Vaia, Roberto Franzosi
Publikováno v:
XIX Convegno Nazionale di Fisica Statistica e dei Sistemi Complessi, Parma, 25-27 June 2014
info:cnr-pdr/source/autori:Ruggero Vaia, Roberto Franzosi/congresso_nome:XIX Convegno Nazionale di Fisica Statistica e dei Sistemi Complessi/congresso_luogo:Parma/congresso_data:25-27 June 2014/anno:2014/pagina_da:/pagina_a:/intervallo_pagine
info:cnr-pdr/source/autori:Ruggero Vaia, Roberto Franzosi/congresso_nome:XIX Convegno Nazionale di Fisica Statistica e dei Sistemi Complessi/congresso_luogo:Parma/congresso_data:25-27 June 2014/anno:2014/pagina_da:/pagina_a:/intervallo_pagine
A possible experimental realization of a quantum analogue of Newton's cradle is proposed starting from a Bose-Einstein condensate of atoms with two internal states, say 0 and 1. They are trapped in a one-dimensional tube with a superimposed periodic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=cnr_________::8b15424d6c5c184e43098dffbdc73793
https://publications.cnr.it/doc/286778
https://publications.cnr.it/doc/286778
Publikováno v:
Journal of applied physics 115 (2014): 17B302-1–17B302-3. doi:10.1063/1.4857575
info:cnr-pdr/source/autori:Alessandro Cuccoli (1,2); Davide Nuzzi (1); Ruggero Vaia (2,3); Paola Verrucchi (1,2,3)/titolo:Quantum gates controlled by spin chain soliton excitations/doi:10.1063%2F1.4857575/rivista:Journal of applied physics/anno:2014/pagina_da:17B302-1/pagina_a:17B302-3/intervallo_pagine:17B302-1–17B302-3/volume:115
58th Annual Conference on Magnetism and Magnetic Materials-MMM58, Denver, USA, 04-08/11/2013
info:cnr-pdr/source/autori:Alessandro Cuccoli (1,2); Davide Nuzzi (1); Ruggero Vaia (2,3); Paola Verrucchi (1,2,3)/congresso_nome:58th Annual Conference on Magnetism and Magnetic Materials-MMM58/congresso_luogo:Denver, USA/congresso_data:04-08%2F11%2F2013/anno:2013/pagina_da:/pagina_a:/intervallo_pagine
info:cnr-pdr/source/autori:Alessandro Cuccoli (1,2); Davide Nuzzi (1); Ruggero Vaia (2,3); Paola Verrucchi (1,2,3)/titolo:Quantum gates controlled by spin chain soliton excitations/doi:10.1063%2F1.4857575/rivista:Journal of applied physics/anno:2014/pagina_da:17B302-1/pagina_a:17B302-3/intervallo_pagine:17B302-1–17B302-3/volume:115
58th Annual Conference on Magnetism and Magnetic Materials-MMM58, Denver, USA, 04-08/11/2013
info:cnr-pdr/source/autori:Alessandro Cuccoli (1,2); Davide Nuzzi (1); Ruggero Vaia (2,3); Paola Verrucchi (1,2,3)/congresso_nome:58th Annual Conference on Magnetism and Magnetic Materials-MMM58/congresso_luogo:Denver, USA/congresso_data:04-08%2F11%2F2013/anno:2013/pagina_da:/pagina_a:/intervallo_pagine
Propagation of soliton-like excitations along spin chains has been proposed as a possible way for transmitting both classical and quantum information between two distant parties with negligible dispersion and dissipation. In this work, a somewhat dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c96f3dfef5b72291d082f1c64ba332fd
Publikováno v:
Physics world (2014).
info:cnr-pdr/source/autori:Tushna Commissariat (1); Roberto Franzosi (2,3); Ruggero Vaia (3,4)/titolo:How to build a quantum Newton's cradle/doi:/rivista:Physics world/anno:2014/pagina_da:/pagina_a:/intervallo_pagine:/volume
info:cnr-pdr/source/autori:Tushna Commissariat (1); Roberto Franzosi (2,3); Ruggero Vaia (3,4)/titolo:How to build a quantum Newton's cradle/doi:/rivista:Physics world/anno:2014/pagina_da:/pagina_a:/intervallo_pagine:/volume
A quantum analogue of the popular "Newton's cradle" toy has been proposed by a duo of physicists in Italy. Like momentum transferred in the toy, the team argues that it should be possible to achieve the nearly perfect transmission of a quantum wavefu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=cnr_________::a1c8e6d9017159f1db3e34f72fba905f
https://publications.cnr.it/doc/281370
https://publications.cnr.it/doc/281370
Publikováno v:
MECO 39: 39th Conference of the Middle European Cooperation in Statistical Physics, pp. 83, Coventry (UK), 8-10 April 2014
info:cnr-pdr/source/autori:Alessandro Cuccoli (1); Davide Nuzzi (1); Ruggero Vaia (2); Paola Verrucchi (2)/congresso_nome:MECO 39: 39th Conference of the Middle European Cooperation in Statistical Physics/congresso_luogo:Coventry (UK)/congresso_data:8-10 April 2014/anno:2014/pagina_da:83/pagina_a:/intervallo_pagine:83
info:cnr-pdr/source/autori:Alessandro Cuccoli (1); Davide Nuzzi (1); Ruggero Vaia (2); Paola Verrucchi (2)/congresso_nome:MECO 39: 39th Conference of the Middle European Cooperation in Statistical Physics/congresso_luogo:Coventry (UK)/congresso_data:8-10 April 2014/anno:2014/pagina_da:83/pagina_a:/intervallo_pagine:83
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=cnr_________::cc0130521c441f1cd3f3261d93a10ff7
http://www.cnr.it/prodotto/i/321485
http://www.cnr.it/prodotto/i/321485