caa a22 4500 467906181 CHVBK 20180406152835.0 cr unu---uuuuu 170328e20061201xx s 000 0 eng 10.1007/s10701-006-9086-4 doi (NATIONALLICENCE)springer-10.1007/s10701-006-9086-4 What is Erased in the Quantum Erasure? [Elektronische Daten] [B. Hiley, R. Callaghan] In this paper, we re-examine a series of gedanken welcher Weg (WW) experiments introduced by Scully, Englert and Walther that contain the essential ideas underlying the quantum eraser. For this purpose we use the Bohm model which gives a sharp picture of the behaviour of the atoms involved in these experiments. This model supports the thesis that interference disappears in such WW experiments, even though the centre of mass wave function remains coherent throughout the experiment. It also shows exactly what it means to say ‘that the interference can be restored by manipulating the WW detectors long after the atoms have passed'. It does not support Wheeler's notion that ‘the past is undefined and undefinable without the observation (in the present)'. Springer Science+Business Media, LLC, 2006 Quantum erasure nationallicence welcher Weg experiments nationallicence Bohm trajectories nationallicence Hiley B. Theoretical Physics Research Unit, Birkbeck College, University of London, Malet Street, WC1E 7HX, London, UK aut Callaghan R. Theoretical Physics Research Unit, Birkbeck College, University of London, Malet Street, WC1E 7HX, London, UK aut Foundations of Physics Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 36/12(2006-12-01), 1869-1883 0015-9018 36:12<1869 2006 36 10701 https://doi.org/10.1007/s10701-006-9086-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10701-006-9086-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hiley B. Theoretical Physics Research Unit, Birkbeck College, University of London, Malet Street, WC1E 7HX, London, UK aut NATIONALLICENCE 700 1- Callaghan R. Theoretical Physics Research Unit, Birkbeck College, University of London, Malet Street, WC1E 7HX, London, UK aut NATIONALLICENCE 773 0- Foundations of Physics Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 36/12(2006-12-01), 1869-1883 0015-9018 36:12<1869 2006 36 10701 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer