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Quantum phase transitions

S. M. Stishov

Institute for High Pressure Physics, Russian Academy of Sciences

Abstract: Continuous phase transitions that occur at zero temperature as a result of quantum fluctuations required by Heisenberg's uncertainty principle are called quantum phase transitions. In the present paper an elementary introduction to quantum phase transitions is given. A few experimental examples from the physics of heavy-fermion systems and itinerant ferromagnets are described.

PACS: 64.60.-i, 71.10.-w, 71.10.Hf

Received: March 15, 2004
Revised: April 30, 2004

DOI: 10.3367/UFNr.0174.200408b.0853

 English version: Physics–Uspekhi, 2004, 47:8, 789–795

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