Coordinator: Francesco Murgia
INFN-Sezione di Cagliari
@ Physics Department
Room: 2A25 (2nd floor, Tower A)
Phone: +39 070 6754902
Website: Group4

 

The activities related to the theoretical physics of the INFN field are coordinated at the Italian level by the National Scientific Commission 4.

Activities in which the INFN Unit of Cagliari is involved:

Gravitational Theories

Mariano Cadoni, Parul Jain, Matteo Tuveri

General relativity and extensions: Black holes; Minimally coupled Einstein-Maxwell-scalar theories; Entanglement entropy vs statistical entropy and thermodynamical entropy; Ultra-compact objects such as boson stars and wormholes; Gravitational waves. Cosmology: Models for inflation; Dark energy via holographic description. Holographic description: Black brane solutions; AdS / CFT correspondence; Domain-wall / cosmology correspondence; Fluid / gravity correspondence. Alternative approaches to GR: Emergent gravity.

 

Hadron Physics

Umberto D’Alesio, Carlo Flore, Francesco Murgia, Cristian Pisano

An updated extraction of the quark transversity distribution and the recent fragmentation function from SIDIS to e + e-e + e- collision data. A new study of the potential contribution of the transverse single spindle asymmetry in polarized pp → hXpp → hX processes at large Feynman xx. Study of the process dependence of the Sons and Collins effects in polarized p ↑ p → jetπXp ↑ p → jetπX processes. Study of transverse single spin asymmetries and TMD factorization in ℓp → πXℓp → πX processes. Study of TMD evolution and non-perturbative effects in transverse momentum spectra of Z-boson production in Drell-Yan.

 

Mathematical Physics

Salvatore Mignemi, Giacomo Rosati

Theory and phenomenology of models with spacetime non-commutativity. A particularly strong effort is devoted to the study of Snyder. Noncommutativity and other models as well as the study of the interplay between spacetime curvature and momentum-space curvature.

String Theory

Giuseppe D’Appollonio

With the light-cone Green-Schwarz vertex and the covariant Reggeon vertex operator. DpDp-branes. A precise interpretation of the ekonal operator through the explicit tree-level calculation of generic inelastic transitions between closed strings.

Turbulence

Piero Olla

Microscopic swimming, with a particular interest in the exploitation of external means (of the presence of an external flow, of thermal fluctuations, etc.) to aid propulsion. The dynamics of a population in an external flows, especially as regards the role of demographic fluctuations in the problem. Modeling of turbulence and turbulent transport by random fields.

Miscellaneous

Soliton theory; DNA dynamics. (M. Cadoni)

Link to group IV website: http://theory.ca.infn.it/research/