2004/04/14 by A. Bramon, G. Garbarino, B. C. Hiesmayr
Physics and Astronomy · #quant-ph #hep-ph
published as "Symmetries in Gravity and Field Theory", ed. by V. Aldaya and J. M. Cervero, Ediciones Universidad de Salamanca, Salamanca, 2004, p. 223 · 12 pages, contribution to the Festschrift in honor of Prof. Jose Adolfo de Azcarraga for his 60th birthday, Salamanca (Spain), June 9-11, 2003
arxiv created 2004/04/14 · arxiv updated 2009/12/01
Quantum marking and quantum erasure are discussed for the neutral kaon system. Contrary to other two-level systems, strangeness and lifetime of a neutral kaon state can be alternatively measured via an "active" or a "passive" procedure. This offers new quantum erasure possibilities. In particular, the operation of a quantum eraser in the "delayed choice" mode is clearly illustrated.