Results 1 to 10 of about 7,048 (122)

Efficient preparation of the AKLT State with Measurement-based Imaginary Time Evolution [PDF]

Quantum 8, 1557 (2024), 2023
Quantum state preparation plays a crucial role in several areas of quantum information science, in applications such as quantum simulation, quantum metrology and quantum computing. However, typically state preparation requires resources that scale exponentially with the problem size, due to their probabilistic nature or otherwise, making studying such ...
arxiv   +1 more source

A Mathematical Analysis and Evaluation of Varroa mite Control Methods for a Mite-infested Honey bee Colony [PDF]

arXiv, 2022
In this paper, we present a mathematical model for the interaction between honey bees and mites. The dynamics of a mite-infested honey bee colony and the evaluation of the commonly used mite-control strategies (traditional, mechanical and chemical) are studied.
arxiv  

A C2-tilde-lattice that is not residually finite [PDF]

arXiv, 2023
We construct the first example of a lattice on an irreducible Euclidean building that is not residually finite. Conjecturally, the normal subgroup theorem extends to this lattice making it virtually simple.
arxiv  

Thermal equilibrium of a macroscopic quantum system in a pure state [PDF]

Phys. Rev. Lett. 115, 100402 (2015), 2015
We consider the notion of thermal equilibrium for an individual closed macroscopic quantum system in a pure state, i.e., described by a wave function. The macroscopic properties in thermal equilibrium of such a system, determined by its wave function, must be the same as those obtained from thermodynamics, e.g., spatial uniformity of temperature and ...
arxiv   +1 more source

Macroscopic and Microscopic Thermal Equilibrium [PDF]

Annalen der Physik 529, 1600301 (2017), 2016
We study the nature of and approach to thermal equilibrium in isolated quantum systems. An individual isolated macroscopic quantum system in a pure or mixed state is regarded as being in thermal equilibrium if all macroscopic observables assume rather sharply the values obtained from thermodynamics.
arxiv   +1 more source

Molecular Spiders on the Plane [PDF]

Phys. Rev. E 85, 061927 (2012), 2012
Synthetic bio-molecular spiders with "legs" made of single-stranded segments of DNA can move on a surface covered by single-stranded segments of DNA called substrates when the substrate DNA is complementary to the leg DNA. If the motion of a spider does not affect the substrates, the spider behaves asymptotically as a random walk.
arxiv   +1 more source

Behavioral modulation of the coexistence between Apis melifera and Varroa destructor: A defense against colony colapse disorder? [PDF]

, 2015
Colony Collapse Disorder has become a global problem for beekeepers and for the crops which depend on bee polination. Multiple factors are known to increase the risk of colony colapse, and the ectoparasitic mite Varroa destructor that parasitizes honey bees is among the main threats to colony health.
arxiv   +1 more source

IntelliBeeHive: An Automated Honey Bee, Pollen, and Varroa Destructor Monitoring System [PDF]

arXiv, 2023
Utilizing computer vision and the latest technological advancements, in this study, we developed a honey bee monitoring system that aims to enhance our understanding of Colony Collapse Disorder, honey bee behavior, population decline, and overall hive health. The system is positioned at the hive entrance providing real-time data, enabling beekeepers to
arxiv  

Population dynamics of Varroa mite and honeybee: Effects of parasitism with age structure and seasonality [PDF]

arXiv, 2020
Honeybees play an important role in the production of many agricultural crops and in sustaining plant diversity in undisturbed ecosystems. The rapid decline of honeybee populations have sparked great concern worldwide. Previous studies have shown that the parasitic Varroa mite could be the main reason for colony losses. In order to understand how mites
arxiv  

Molecular Spiders in One Dimension [PDF]

Journal of Statistical Mechanics P08027 (2007), 2007
Molecular spiders are synthetic bio-molecular systems which have "legs" made of short single-stranded segments of DNA. Spiders move on a surface covered with single-stranded DNA segments complementary to legs. Different mappings are established between various models of spiders and simple exclusion processes.
arxiv   +1 more source