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Generation of Entanglement in a System of Two Dipole‐Interacting Atoms by Means of Laser Pulses
Author(s) -
Bargatin I.V.,
Grishanin B.A.,
Zadkov V.N.
Publication year - 2000
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/(sici)1521-3978(200005)48:5/7<637::aid-prop637>3.0.co;2-8
Subject(s) - quantum entanglement , population inversion , physics , laser , atomic physics , population , pulse (music) , atom (system on chip) , quantum mechanics , dipole , quantum , computer science , demography , voltage , sociology , embedded system
Effectiveness of using laser field to produce entanglement between two dipole‐interacting identical two‐level atoms is considered in detail. The entanglement is achieved by driving the system with a carefully designed laser pulse transferring the system's population to one of the maximally entangled Dicke states in a way analogous to population inversion by a resonant π ‐pulse in a two‐level atom. It is shown that for the optimally chosen pulse frequency, power and duration, the fidelity of generating a maximally entangled state approaches unity as the distance between the atoms goes to zero.