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We consider strangeness correlations of the EPR type in K^0 \bar{K}^0 pairscreated in a J^{PC} = 1^{--} state as a function of time under the hypothesisthat spontaneous decoherence takes place. We parameterize the degree ofdecoherence by a factor (1-\zeta) which multiplies the quantum-mechanicalinterference terms occurring in the amplitudes for like and unlike strangenessevents and discuss the dependence of this procedure on the basis chosen in theK^0--\bar{K}^0 space to which the interference terms correspond. Consequently,all statements about the ``decoherence parameter'' \zeta inferred fromexperimental data are basis-dependent as well. We illustrate this point byestimating the value of \zeta for the two bases {K_L, K_S} and {K^0, \bar{K}^0}with the help of recent data of the CPLEAR experiment.Comment: 12 pages, 1 figure, revte

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Quantum mechanics, Furry’s hypothesis, and a measure of decoherence in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>system

Quantum mechanics, Furry’s hypothesis, and a measure of decoherence in theK0K0system