Engineering mixed states in a degenerate four-state system

A. Karpati, Z. Kis, P. Ádám

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A method for preparing any pure and wide class of mixed quantum states in the decoherence-free ground-state subspace of a degenerate multilevel lambda system, was proposed. The method is a combination of optical pumping and a series of coherent excitation processes. The method is robust with respect to the fluctuation of the pulse areas, as in adiabatic methods. The method is based on an excitation-relaxation process that derived the state of the system into the dark subspace of the Hamiltonian that governed the dynamics without decay processes.

Original languageEnglish
JournalPhysical Review Letters
Volume93
Issue number19
DOIs
Publication statusPublished - Nov 5 2004

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engineering
optical pumping
excitation
ground state
decay
pulses

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Engineering mixed states in a degenerate four-state system. / Karpati, A.; Kis, Z.; Ádám, P.

In: Physical Review Letters, Vol. 93, No. 19, 05.11.2004.

Research output: Contribution to journalArticle

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