Zobrazeno 1 - 10 of 182 pro vyhledávání: '"E. Lipparini"'
2
A sum rule approach to collective spin modes in paramagnetic clusters, cavities and shells
Autor: E. Lipparini, M. Califano
Publikováno v: Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 37:365-370
We study spin collective modes in paramagnetic systems using a sum rule approach. We give a simple and analytical expression for the static magnetic polarizability of finite size systems in terms of their radii and of the magnetic susceptibility of a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1cfb90b61b0251da0ace4ace87e2159
https://doi.org/10.1007/s004600050053
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4
Fragmentation of plasma resonances in open-shell silver cluster ions
Autor: E. Lipparini, A. Ventura
Publikováno v: Il Nuovo Cimento D. 16:391-400
We study the fragmentation of the dipole collective states in silver cluster ions by looking at the coupling with surface oscillations and deformations of a dropletlike structure. This coupling is found to be crucial in order to reproduce the experim
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63eb1121ec9632449baec7817e94b9fd
https://doi.org/10.1007/bf02451646
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5
? plasmon modes inC 60 clusters
Autor: N. Van Giai, E. Lipparini
Publikováno v: Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 27:193-197
We study collective excitations of π electrons in the fullerene molecule, by using the sum rule approach and linear response theory. The results for the excitation spectrum are discussed in relation to experimental data and to other theoretical appr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::147044c615faf037efeee373e81aa89b
https://doi.org/10.1007/bf01426767
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6
Effect of interactions on the conductance of graphene nanoribbons
Autor: E. Lipparini, Pietro Faccioli, M. Bazzanella
Publikováno v: Physical Review B. 82
We study the effects of the interaction between electrons and holes on the conductance G of quasi-one-dimensional graphene systems. We first consider as a benchmark the limit in which all interactions are negligible, recovering the predictions of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e0434db775782ca7a61d2254d120739
https://doi.org/10.1103/physrevb.82.205422
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8
Droplet model of plasma resonances in medium-size metal clusters
Autor: A. Ventura, E. Lipparini, F. Iachello
Publikováno v: Physical Review B. 45:4431-4438
We study photon absorption and scattering by medium-size {ital N}=8--20 sodium clusters, making use of the interacting boson model to describe the coupling of plasma resonances to surface oscillations and deformations of a dropletlike structure. With
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce3ed0fac32dce6ab15c8c215326b2ff
https://doi.org/10.1103/physrevb.45.4431
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9
Contributions of early diagenesis of North and Central Adriatic Sea in the Carbon budget: first results of the oceanographic cruise VECTOR632
Autor: Spagnoli F., Ravaioli M., M. Nisi, M. Marini, P. Focaccia, A. Andresini, E. Lipparini, S. Romano, P. Giordano, S. Albertazzi, G. Marozzi, M. Frignani, G. Bortoluzzi, M. Giani, G. Catalano, S. Giuliani, L. Bellucci, F. Chiarini
Publikováno v: VECTOR: II workshop annuale, Roma, 25-26 febbraio 2009
info:cnr-pdr/source/autori:Spagnoli F., Ravaioli M., M. Nisi, M. Marini, P. Focaccia, A. Andresini, E. Lipparini, S. Romano, P. Giordano, S. Albertazzi, G. Marozzi, M. Frignani, G. Bortoluzzi, M. Giani, G. Catalano, S. Giuliani, L. Bellucci, F. Chiarini,/congresso_nome:VECTOR: II workshop annuale/congresso_luogo:Roma/congresso_data:25-26 febbraio 2009/anno:2009/pagina_da:/pagina_a:/intervallo_pagine
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::d7e54d31698ce7ade93372e7bec09ddf
https://publications.cnr.it/doc/261221
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10
Effective Field Theory for the Quantum Electrodynamics of a Graphene Wire
Autor: Pietro Faccioli, E. Lipparini
We study the low-energy quantum electrodynamics of electrons and holes, in a thin graphene wire. We develop an effective field theory (EFT) based on an expansion in p/p_T, where p_T is the typical momentum of electrons and holes in the transverse dir
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::363906c364fe4f9eba06ad80528f00b0
http://arxiv.org/abs/0812.4133
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