Entropic time-energy uncertainty relations: An algebraic approach

Abstract

We address entropic uncertainty relations between time and energy or, more precisely, between measurements of an observable $G$ and the displacement $r$ of the $G$-generated evolution $e^{-irG}$. We derive lower bounds on the entropic uncertainty in two frequently considered scenarios, which can be illustrated as two different guessing games in which the role of the guessers are fixed or not. In particular, our bound for the first game improves the previous result by Coles et al.. Our derivation uses as a subroutine a recently proposed novel algebraic method, which can in general be used to derive a wider class of entropic uncertainty principles.

arXiv comment14 pages, 5 figures. Comments are very welcome

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Cited by in corpus (3)

• Asymmetry and tighter uncertainty relations for Rényi entropies via quantum-classical decompositions of resource measures
• Time-energy uncertainty relation for noisy quantum metrology
• Quantum Uncertainty Dynamics