Relativistic coupled-cluster single-double calculations of positron-atom bound states
arXiv:1204.6577 · doi:10.1103/PhysRevA.86.032503
Abstract
Relativistic coupled-cluster single-double approximation is used to calculate positron-atom bound states. The method is tested on closed-shell atoms such as Be, Mg, Ca, Zn, Cd, and Hg where a number of accurate calculations is available. It is then used to calculate positron binding energies for a range of open-shell transition metal atoms from Sc to Cu, from Y to Pd, and from Lu to Pt. These systems possess Feshbach resonances, which can be used to search for positron-atom binding experimentally through resonant annihilation or scattering.
submitted to Phys. Rev. A
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Cited by in corpus (10)
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- Atoms which can bind positrons
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- Formation of positron-atom bound states in collisions between Rydberg Ps and neutral atoms
- Calculations of positron binding and annihilation in polyatomic molecules
- Model-potential calculations of positron binding, scattering, and annihilation for atoms and small molecules, using a Gaussian basis
- Effect of chlorination on positron binding to hydrocarbons: experiment and theory
- Scalar Static Polarizabilities of Lanthanides and Actinides
- Effect of atomic electric quadrupole moment on positron binding
- Coupled cluster theory for positron binding in anions and polyatomic molecules