Article
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Preserved in Portico This version is not peer-reviewed
Stronger Quantum Speed Limit For Mixed Quantum States
Version 1
: Received: 22 May 2023 / Approved: 23 May 2023 / Online: 23 May 2023 (08:17:43 CEST)
A peer-reviewed article of this Preprint also exists.
Bagchi, S.; Thakuria, D.; Pati, A.K. Stronger Quantum Speed Limit for Mixed Quantum States. Entropy 2023, 25, 1046. Bagchi, S.; Thakuria, D.; Pati, A.K. Stronger Quantum Speed Limit for Mixed Quantum States. Entropy 2023, 25, 1046.
Abstract
We derive a quantum speed limit for unitary evolution for the case of mixed quantum states using the stronger uncertainty relation for mixed quantum states. This bound can be optimized over different choices of Hermitian operators for a better bound. We illustrate this with some examples and show its better performance with respect to three existing bounds for mixed quantum states.
Keywords
Quantum Speed Limit; Mixed Quantum States; Time-Energy Uncertainty Relation
Subject
Physical Sciences, Quantum Science and Technology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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