Reproduction of material from the journal in any form requires written permission of the publisher.
Teachers, students and researchers can individually use the materials on Physics-Uspekhi website for noncommercial use in a teaching or research activities.
Оригинал: Пилан А М «Действительность и главный вопрос о квантовой информации» УФН 171 444–447 (2001); DOI: 10.3367/UFNr.0171.200104i.0444