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Home > Advances in High Energy Physics (Hindawi) > On the Velocity of Moving Relativistic Unstable Quantum Systems |

Urbanowski, K. (Institute of Physics, University of Zielona Góra, Ulica Prof. Z. Szafrana 4a, 65-516 Zielona Góra, Poland)

01 January 2016

**Abstract: **We study properties of moving relativistic quantum unstable systems. We show that in contrast to the properties of classical particles and quantum stable objects the velocity of freely moving relativistic quantum unstable systems cannot be constant in time. We show that this new quantum effect results from the fundamental principles of the quantum theory and physics: it is a consequence of the principle of conservation of energy and of the fact that the mass of the quantum unstable system is not defined. This effect can affect the form of the decay law of moving relativistic quantum unstable systems.

**Published in: ****Advances in High Energy Physics 2015 (2015) 461987**
**Published by: **Hindawi Publishing Corporation

**DOI: **10.1155/2015/461987

**License: **CC-BY-3.0