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Universality and Scaling Limit of Weakly-Bound Tetramers
(American Institute of Physics (AIP), 2012-01-01)
The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two successive tetramer states, is revealed by considering a renormalized zero-range two-body ...
Double-bound equivalent of the three-body Coulomb double-continuum wave function
(American Physical Society, 2007-03)
In cross-section calculations of electron or photon double ionization processes of two-electron atoms, it is desirable to have a symmetric description of initial and final states. In this contribution, we search the doubly ...
Mass-imbalanced three-body systems in two dimensions
(2013-03-14)
We consider three-body systems in two dimensions with zero-range interactions for general masses and interaction strengths. The momentum-space Schrödinger equation is solved numerically and in the Born-Oppenheimer (BO) ...
Mass-imbalanced three-body systems in two dimensions
(2013-03-14)
We consider three-body systems in two dimensions with zero-range interactions for general masses and interaction strengths. The momentum-space Schrödinger equation is solved numerically and in the Born-Oppenheimer (BO) ...
J/Ψ mass shift and J/Ψ-nuclear bound state
(2011-08-16)
We calculate mass shift of the J/Ψ meson in nuclear matter arising from the modification of DD, DD* and D*D* meson loop contributions to the J/Ψ self-energy. The estimate includes the in-medium D and D* meson masses ...
Absence of Cooper-type bound states in three- and few-electron systems
(1998-12-01)
It is shown that the appearance of a fixed-point singularity in the kernel of the two-electron Cooper problem is responsible for the formation of the Cooper pair for an arbitrarily weak attractive interaction between two ...
Absence of Cooper-type bound states in three- and few-electron systems
(1998-12-01)
It is shown that the appearance of a fixed-point singularity in the kernel of the two-electron Cooper problem is responsible for the formation of the Cooper pair for an arbitrarily weak attractive interaction between two ...
The value of (bounded) memory in a changing world
(Springer, 2014-05)
This paper explores the value of memory in decision making in dynamic environments. We examine the decision problem faced by an agent with bounded memory who receives a sequence of signals from a partially observable Markov ...
Neutron-C-19 scattering near an Efimov state
(Elsevier B.V., 2008-12-04)
The low-energy neutron-C-19 scattering in a neutron-neutron-core model is studied with large scattering lengths near the conditions for the appearance of an Efimov state. We show that the real part of the elastic s-wave ...