Positron-atom complexes as quantum halo states

James Mitroy

Positron-atom complexes as quantum halo states

James Mitroy

Research output: Contribution to journal › Article

Abstract

The wave functions of a number of positron-atom complexes are analyzed and three of the systems, namely, e+Be, e+Na, and e +He(3Se), are seen to exhibit quantum halo structures with 45%-50% of their probability distribution lying in the large r classically forbidden region. The mean square distance between the large r fragments (e+ + Be, Ps + Na+, Ps + He+) for these systems range from 1.8 to 2.2 times larger than the square of the classical turning point, another indication of their halolike nature. � 2005 The American Physical Society.

Original language	English
Pages (from-to)	33402.1-33402.4
Journal	Physical Review Letters
Volume	94
Issue number	3
Publication status	Published - 2005

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title = "Positron-atom complexes as quantum halo states",

abstract = "The wave functions of a number of positron-atom complexes are analyzed and three of the systems, namely, e+Be, e+Na, and e +He(3Se), are seen to exhibit quantum halo structures with 45%-50% of their probability distribution lying in the large r classically forbidden region. The mean square distance between the large r fragments (e+ + Be, Ps + Na+, Ps + He+) for these systems range from 1.8 to 2.2 times larger than the square of the classical turning point, another indication of their halolike nature. � 2005 The American Physical Society.",

keywords = "Atomic systems, Positron-atom complexes, Quantum halo structures, Rydberg states, Atomic physics, Binding energy, Mathematical models, Nuclear physics, Polarization, Positrons, Probability, Quantum theory, High energy physics",

author = "James Mitroy",

year = "2005",

language = "English",

volume = "94",

pages = "33402.1--33402.4",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Positron-atom complexes as quantum halo states

AU - Mitroy, James

PY - 2005

Y1 - 2005

N2 - The wave functions of a number of positron-atom complexes are analyzed and three of the systems, namely, e+Be, e+Na, and e +He(3Se), are seen to exhibit quantum halo structures with 45%-50% of their probability distribution lying in the large r classically forbidden region. The mean square distance between the large r fragments (e+ + Be, Ps + Na+, Ps + He+) for these systems range from 1.8 to 2.2 times larger than the square of the classical turning point, another indication of their halolike nature. � 2005 The American Physical Society.

AB - The wave functions of a number of positron-atom complexes are analyzed and three of the systems, namely, e+Be, e+Na, and e +He(3Se), are seen to exhibit quantum halo structures with 45%-50% of their probability distribution lying in the large r classically forbidden region. The mean square distance between the large r fragments (e+ + Be, Ps + Na+, Ps + He+) for these systems range from 1.8 to 2.2 times larger than the square of the classical turning point, another indication of their halolike nature. � 2005 The American Physical Society.

KW - Atomic systems

KW - Positron-atom complexes

KW - Quantum halo structures

KW - Rydberg states

KW - Atomic physics

KW - Binding energy

KW - Mathematical models

KW - Nuclear physics

KW - Polarization

KW - Positrons

KW - Probability

KW - Quantum theory

KW - High energy physics

M3 - Article

VL - 94

SP - 33402.1-33402.4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 3

ER -