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Speed Limits: A Perspective from Behavioral EcologyLímites de velocidad: Una mirada desde la ecología conductual
(Universidad Nacional de Costa Rica, 2010)
Comment on "modified quantum-speed-limit bounds for open quantum dynamics in quantum channels"
(American Physical Society, 2018-04)
In a recent paper [Phys. Rev. A 95, 052118 (2017)2469-992610.1103/PhysRevA.95.052118], the authors claim that our criticism, in Phys. Rev. A 94, 052125 (2016)2469-992610.1103/PhysRevA.94.052125, to some quantum speed limit ...
Enhancement of quantum speed limit time due to cooperative effects in multilevel systems
(IOP Publishing, 2015-08)
Deriving minimum evolution times is of paramount importance in quantum mechanics. Bounds on the speed of evolution are given by the so called quantum speed limit (QSL). In this work we use quantum optimal control methods ...
Quantum-speed-limit bounds in an open quantum evolution
(American Physical Society, 2016-11)
ABSTRACTQuantum mechanics dictates bounds for the minimal evolution time between predetermined initial and final states. Several of these quantum-speed-limit (QSL) bounds were derived for nonunitary dynamics using different ...
Flexible paddle sheds new light on speed: A novel method for the remote measurement of swim speed in aquatic animals
(Inter-Research Science Center, 2008-12)
Speed is a key determinant of energy expenditure in free-living animals, and particularly in marine vertebrates, where power requirements for swimming increase as a cubed function of the speed. However, current devices ...
Gait speed according to cognitive status in older adults: a cross-sectional study in a resource-limited country
(Taylor and Francis, 2023)
Objective: We aimed to investigate the association between gait speed and cognitive status in outpatient older adults from a resource-limited setting in Peru. Methods: We performed a cross-sectional study including older ...
Quantum control landscape for a two-level system near the quantum speed limit
(IOP Publishing, 2018-08)
The core problem in optimal control theory applied to quantum systems is to determine the temporal shape of an applied field in order to maximize the expected value of some physical observable. The complexity of this ...