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Projects / Programmes source: ARIS

Decoherence in microscopic systems and the emergence of classical properties

Research activity

Code Science Field Subfield
1.02.01  Natural sciences and mathematics  Physics  Physics of condesed matter 

Code Science Field
P190  Natural sciences and mathematics  Mathematical and general theoretical physics, classical mechanics, quantum mechanics, relativity, gravitation, statistical physics, thermodynamics 
P260  Natural sciences and mathematics  Condensed matter: electronic structure, electrical, magnetic and optical properties, supraconductors, magnetic resonance, relaxation, spectroscopy 
Keywords
rotational tunneling, interference, decoherence, rotational hopping
Evaluation (rules)
source: COBISS
Researchers (3)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  03590  PhD Igor Jenčič  Physics  Researcher  1998 - 2001  151 
2.  04645  PhD Jožef Peternelj  Physics  Head  1998 - 2001  111 
3.  11312  PhD Jure Skvarč  Physics  Researcher  2000 - 2001  211 
Organisations (2)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,682 
2.  0792  University of Ljubljana, Faculty of Civil and Geodetic Engineering  Ljubljana  1626981  25,721 
Abstract
Interference between various alternatives available to the microscopic system is a direct consequence of its quantum mechanical nature. As a practical example we propose to analyse rotational motion of XH3 molecular groups embedded in solid lattices. In this case interference occurs between different Feynman paths connecting the initial and final orientation of the group. Decoherence is a dynamical effect due to the interaction between the observed system and its environment, and tends to destroy quantum interferences.
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