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110 papers · 1 filter
Reduced density matrix and entanglement entropy of permutationally invariant quantum many-body systems
V. Popkov, Mario Salerno
In this paper we discuss the properties of the reduced density matrix of quantum many body systems with permutational symmetry and present basic quantification of the entanglement…
Dissipative quantum mechanics and Kondo-like impurities on noncommutative two-tori
Patrizia Iacomino, Vincenzo Marotta, Adele Naddeo
In a recent paper, by exploiting the notion of Morita equivalence for field theories on noncommutative tori and choosing rational values of the noncommutativity parameter (in a…
Vortex motion in Nb/PdNi/Nb trilayers: new aspects in the flux flow state
K. Torokhtii, C. Attanasio, C. Cirillo +4
We study the dynamics of vortex lines in Supercondutor/Ferromagnet/Superconductor (SFS) heterostructures at microwave frequencies. We have employed swept-frequency, Corbino-disk an…
Light scattering in inhomogeneous Tomonaga-Luttinger liquids
E. Orignac, R. Citro, S. De Palo +1
We derive the dynamical structure factor for an inhomogeneous Tomonaga-Luttinger liquid as can be formed in a confined strongly interacting one-dimensional gas. In view of current…
Continuum limits of bistable spring models of carbon nanotube arrays accounting for material damage
T. Blesgen, F. Fraternali, J. R. Raney +2
Using chains of bistable springs, a model is derived to investigate the plastic behavior of carbon nanotube arrays with damage. We study the preconditioning effect due to the loadi…
The Composite Operator Method (COM)
Adolfo Avella, Ferdinando Mancini
The Composite Operator Method (COM) is formulated, its internals illustrated in detail and some of its most successful applications reported. COM endorses the emergence, in strongl…