Search results for " finite temperature"

showing 2 items of 2 documents

Uhlmann number in translational invariant systems

2019

We define the Uhlmann number as an extension of the Chern number, and we use this quantity to describe the topology of 2D translational invariant Fermionic systems at finite temperature. We consider two paradigmatic systems and we study the changes in their topology through the Uhlmann number. Through the linear response theory we linked two geometrical quantities of the system, the mean Uhlmann curvature and the Uhlmann number, to directly measurable physical quantities, i.e. the dynamical susceptibility and to the dynamical conductivity, respectively.

0301 basic medicineSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciMathematics::Analysis of PDEsFOS: Physical scienceslcsh:MedicineCurvatureArticleCondensed Matter - Strongly Correlated Electrons03 medical and health sciences0302 clinical medicineTopological insulatorsInvariant (mathematics)lcsh:ScienceCondensed Matter - Statistical MechanicsMathematicsMathematical physicsPhysical quantityQuantum PhysicsMultidisciplinaryChern classStatistical Mechanics (cond-mat.stat-mech)Strongly Correlated Electrons (cond-mat.str-el)lcsh:RUhlmann number Chern number 2D topological Fermionic systems finite temperature dynamical susceptibility dynamical conductivity030104 developmental biologylcsh:QQuantum Physics (quant-ph)Theoretical physicsLinear response theory030217 neurology & neurosurgeryScientific Reports
researchProduct

Strange and charm mesons at FAIR

2010

Presented at the XXXI Mazurian Lakes Conference on Physics, Piaski, Poland, August 30–September 6, 2009.

CharmCBMNuclear TheoryNuclear TheoryScalar ResonancesFOS: Physical sciencesStrange ; Charm ; Mesons ; CBM ; FAIR ; GSI ; Finite temperature ; Spectral functions ; Scalar ResonancesStrange mesonUNESCO::FÍSICA::Física molecular::Moléculas mesónicas y muónicasGSINuclear Theory (nucl-th)High Energy Physics - Phenomenology (hep-ph):FÍSICA [UNESCO]Nuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentNUCLEAR-MATTERFAIREnergyMesonsFinite temperatureHigh Energy Physics::PhenomenologyUNESCO::FÍSICASpectral functionsTemperatureStrangeHigh Energy Physics - PhenomenologyCharm mesonsHigh Energy Physics::Experiment:FÍSICA::Física molecular::Moléculas mesónicas y muónicas [UNESCO]RESONANCES
researchProduct