The nuclear pairing problem: new perspectives

The nuclear pairing problem: new perspectives

The overview of the Exact Pairing technique based on the quasispin symmetry is presented. Extensions of this method are discussed in relation to mean field, quadrupole collectivity, electromagnetic transitions, and many-body level density. Realistic calculations compared with experimental data are used to support the methods as well as to emphasize the manifestations of pairing correlations in ...

Some New Perspectives on Pairing in Nuclei

Ever since the work of Richardson in the mid-60s1, it has been recognized that the Pairing Model (PM) is exactly solvable, even in the presence of non-degenerate single-particle levels. In recent years, there has been a resurgence of interest in the PM, with several applications reported that build on this exact solvability 2. This talk reviews two recent applications of the PM in nuclear physi...

Nuclear Pairing Problem with Exact Particle Number Conservation

The Ephemeral Pairing Problem

In wireless ad-hoc broadcast networks the pairing problem consists of establishing a (long-term) connection between two specific physical nodes in the network that do not yet know each other. We focus on the ephemeral version of this problem. Ephemeral pairings occur, for example, when electronic business cards are exchanged between two people that meet, or when one pays at a check-out using a ...

New Perspectives on the N -body Problem

The problem of the motion of N ≥ 2 point–masses (i.e., ideal bodies with no physical dimension identified with points in the Euclidean three–dimensional space) interacting only through Newton’s law of mutual gravitational attraction, has been a central issue in astronomy, physics and mathematics since the early developments of modern calculus. When N = 2 the problem has been completely solved (...