Optimal Joint Measurements of Position and Momentum
نویسنده
چکیده
The distribution of measured values for maximally accurate, unbi-ased simultaneous measurements of position and momentum is investigated. It is shown, that if the measurement is retrodictively optimal, then the distribution of results is given by the initial state Husimi function (or Q-representation). If the measurement is predic-tively optimal, then the distribution of results is related to the final state anti-Husimi function (or P-representation). The significance of this universal property for the interpretation of the Husimi function is discussed.
منابع مشابه
ua nt - p h / 98 03 05 3 v 2 1 9 A pr 1 99 8 OPTIMAL JOINT MEASUREMENTS OF POSITION AND MOMENTUM
The distribution of measured values for maximally accurate, unbi-ased simultaneous measurements of position and momentum is investigated. It is shown, that if the measurement is retrodictively optimal, then the distribution of results is given by the initial state Husimi function (or Q-representation). If the measurement is predic-tively optimal, then the distribution of results is related to t...
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تاریخ انتشار 1998