Quantum mechanics, Furry's hypothesis and a measure of decoherence in the K^0 \bar{K}^0 system

Abstract

We consider strangeness correlations of the EPR type in K^0 \bar{K}^0 pairs created in a J^{PC} = 1^{--} state as a function of time under the hypothesis that spontaneous decoherence takes place. We parameterize the degree of decoherence by a factor (1-ζ) which multiplies the quantum-mechanical interference terms occurring in the amplitudes for like and unlike strangeness events and discuss the dependence of this procedure on the basis chosen in the K^0--\bar{K}^0 space to which the interference terms correspond. Consequently, all statements about the ``decoherence parameter'' ζinferred from experimental data are basis-dependent as well. We illustrate this point by estimating the value of ζfor the two bases {K_L, K_S} and {K^0, \bar{K}^0} with the help of recent data of the CPLEAR experiment.

12 pages, 1 figure, revtex

References in corpus (5)

• Violation of Bell's inequality under strict Einstein locality conditions
• Bell-inequalities for Entangled Neutral Kaons
• Bell-inequalities for $K^0\overline{K^0}$ Pairs from $\Phi$-Resonance Decays
• How Devious are Deviations From Quantum Mechanics: The Case of the B^0 \bar B^0 System
• Two-Particle Correlations and $B^0{\bar{B}}^0$ Mixing

Cited by in corpus (32)

• The Physics of the B Factories
• Physics with the KLOE-2 experiment at the upgraded DA$\varphi$NE
• Oscillations of neutrinos and mesons in quantum field theory
• A Geometric Picture of Entanglement and Bell Inequalities
• Bell inequalities for entangled kaons and their unitary time evolution
• First observation of quantum interference in the process phi -> KS KL ->pi+pi-pi+pi-: a test of quantum mechanics and CPT symmetry
• Decoherence of entangled kaons and its connection to entanglement measures
• A test of Local Realism with entangled kaon pairs and without inequalities
• Reconciling results of LSND, MiniBooNE and other experiments with soft decoherence
• Bell's inequality tests with meson-antimeson pairs
• Bell inequality and CP violation in the neutral kaon system
• A model for decoherence of entangled beauty
• Measurement of EPR-type flavour entanglement in Upsilon(4S)->B0 B0bar decays
• Entanglement, Bell Inequalities and Decoherence in Particle Physics
• Violation of a Bell inequality in particle physics experimentally verified?
• High Energy Quantum Teleportation Using Neutral Koans
• Entangled baryons: violation of Inequalities based on local realism assuming dependence of decays on hidden variables
• Heisenberg's Uncertainty Relation and Bell Inequalities in High Energy Physics
• Towards an Einstein-Podolsky-Rosen paradox between two macroscopic atomic ensembles at room temperature
• Variations on KamLAND: likelihood analysis and frequentist confidence regions
• Boson mixing and flavor oscillations in curved space-time
• Does particle decay cause wave function collapse: An experimental test
• Entropic Leggett-Garg inequality in neutrinos and B (K) meson systems
• John Bell and the Nature of the Quantum World
• Decoherence free Bd and Bs meson systems
• Can a spontaneous collapse in flavour oscillations be tested at KLOE?
• Newtonian Self-Gravitation in the Neutral Meson System
• The KLOE-2 experiment: overview of recent results
• Standard Model of Particle Physics Violating Crypto-Nonlocal Realism
• Two-Particle Correlations and Meson-Antimeson Mixing Effects
• Neutral kaon interferometry at KLOE and KLOE-2
• The Entropic Uncertainty Principle for Decaying Systems and CP violation