• Corpus ID: 208856764

Comment on `Quantum Solution to the Arrow-of-Time Dilemma' of L. Maccone arXiv:0802.0438

@inproceedings{Kupervasser2009CommentO,
  title={Comment on `Quantum Solution to the Arrow-of-Time Dilemma' of L. Maccone arXiv:0802.0438},
  author={Oleg Kupervasser and Dimitri N. Laikov},
  year={2009}
}

• O. Kupervasser, D. Laikov
• Published 13 November 2009
• Physics

A recent Letter by Maccone presents a solution to the arrow-of-time dilemma based on existing laws of quantum mechanics. He argues that all phenomena where the entropy decreases must not leave any information (in the observer's memory) of their having happened, the observer being a part of the whole system. He concludes that quantum mechanics is necessary to his argument, which he thinks does not otherwise work in classical mechanics. This Comment and the previously published Comment of Jennings, Rudolph describes flaws in Maccone's arguments. However, the main argument (observer's memory erasing) previously formulated in the works by one of us (O.K.) and repeated by Maccone is correct under conditions described in this Comment. Moreover, this argument can be used for resolving a reduction paradox (Schrodinger Cat paradox) in quantum mechanics. In part fourth time arrows synchronization (decohorence) is discussed. In part fifth time arrows synchronization (decohorence) in quantum gravity is discussed. This Comment consists of five parts. The first one is written by Oleg Kupervasser and Dimitri Laikov. The second, third, fourth and fifth ones are written by Oleg Kupervasser only.