Measurement of weak values for all powers of an observable

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Nahvifard Elahe

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Journal Paper

Paper Information

Journal: JOURNAL OF RESEARCH ON MANY BODY SYSTEMS Year:2020 | Volume:10 | Issue:2 Page(s): 125-134

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Information Journal Paper

Title

Measurement of weak values for all powers of an observable

Author(s)

Nahvifard Elahe | Issue Writer Certificate

Keywords

Weak measurementQ1

Weak valuesQ1

State tomographyQ1

Abstract

Weak values of an observable can be found using Weak measurements with pre-and post selections for target states. For example, when Weak values are small, the expectation value of the pointer position (momentum) shows a shift proportional to the real (imaginary) part of the weak value. In this paper, we introduce the foundations of a new method for obtaining Weak values that need not the weakness of the measurement. Using this method, not only the Weak values of an observable but also Weak values of all powers of the observable can be determined. The key point in this method is that instead of conditional expectation values of the device position and momentum in the standard method we use a complete set of marginal distributions to reconstruct device quantum state.

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APA: Copy

Nahvifard, Elahe. (2020). Measurement of weak values for all powers of an observable. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, 10(2 ), 125-134. SID. https://sid.ir/paper/404860/en

Vancouver: Copy

Nahvifard Elahe. Measurement of weak values for all powers of an observable. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS[Internet]. 2020;10(2 ):125-134. Available from: https://sid.ir/paper/404860/en

IEEE: Copy

Elahe Nahvifard, “Measurement of weak values for all powers of an observable,” JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, vol. 10, no. 2 , pp. 125–134, 2020, [Online]. Available: https://sid.ir/paper/404860/en

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