Abstract
The equation of motion technique is used to derive quantum operators corresponding to the microscopic stress tensor and pressure. The technique is demonstrated for a one-dimensional system. Stress tensor and related operators are obtained for a nonrelativistic, many-body, Coulomb system. The stress tensor operators occur as a momentum flux density in continuity equations which are the quantum analog to Newton's second law (F = ma). The derivation also produces operators with obvious classical analogs such as linear and angular momentum densities in a context which makes their physical role evident.
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