HP Labs Technical Reports

Quantum Measurement Back-Reaction and Induced Topological Phases

Aharonov, Y.; Kaufherr, T.; Popescu, Sandu; Reznik, Benni

HPL-BRIMS-97-21

Keyword(s): quantum mechanics; Berry phase measurement; back- reaction

Abstract: It is shown that a topological vector-potential (Berry phase) is induced by the act of measuring angular momentum in a direction defined by a reference particle. This vector potential appears as a consequence of the back-reaction due to the quantum measurement.

7 Pages

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