Entropic uncertainty relations for multiple measurements

Abstract

We present the entropic uncertainty relations for multiple measurement settings in quantum mechanics. Those uncertainty relations are obtained for both cases with and without the presence of quantum memory. They take concise forms which can be proven in a unified method and easy to calculate. Our results recover the well known entropic uncertainty relations for two observables, which show the uncertainties about the outcomes of two incompatible measurements. Those uncertainty relations are applicable in both foundations of quantum theory and the security of many quantum cryptographic protocols.

11 pages (including the appendix), 2 figures

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• Enhanced Information Exclusion Relations
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• Stronger uncertainty relations with improvable upper and lower bounds
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• Probe of Generic Quantum Contextuality and Nonlocal Resources for Qubits
• Experimental testing of entropic uncertainty relations with multiple measurements in pure diamond
• Entropic Uncertainty Principle and Information Exclusion Principle for multiple measurements in the presence of quantum memory
• Equivalence of mutually unbiased bases via orbits: general theory and a $d=4$ case study
• Tighter entropic uncertainty relations in the presence of quantum memories for complete sets of mutually unbiased bases