Physical consequences of the choice of the Lagrangian
- 15 August 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 24 (4) , 1036-1039
- https://doi.org/10.1103/physrevd.24.1036
Abstract
The physical consequences of the existence of inequivalent Lagrangians associated with a given equation of motion are examined in quantum mechanics. It is shown that in the case of conservative systems one additional condition is sufficient to select the physically correct Lagrangian. It is remarked that in the case of dissipative systems the situation is quite different, and no conditions are known to single out a unique Lagrangian.Keywords
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