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Quantum quench dynamics of geometrically frustrated Ising models.
Nat Commun
December 2024
Department of Physics and Astronomy, Purdue University, West Lafayette, IN, USA.
Geometric frustration in two-dimensional Ising models allows for a wealth of exotic universal behavior, both Ising and non-Ising, in the presence of quantum fluctuations. In particular, the triangular antiferromagnet and Villain model in a transverse field can be understood through distinct XY pseudospins, but have qualitatively similar phase diagrams including a quantum phase transition in the (2+1)-dimensional XY universality class. While the quantum dynamics of modestly-sized systems can be simulated classically using tensor-based methods, these methods become infeasible for larger lattices.
View Article and Find Full Text PDFElectrochemical Behaviors of Ultramicro Triangular Pipettes.
Anal Chem
December 2024
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Ultramicro pipettes with circular orifices have practically become common probes in exploring the microscopic world, yet the versatility of differently shaped pipettes is undermined in the pore family. Herein, ultramicro triangular pipettes with a pseudotriangular-shaped orifice were fabricated by laser-pulling triangular quartz capillaries and characterized by microscopic and electrochemical methods. Then, the differences in the electrochemical behaviors of triangular and circular pores were revealed through experiments and simulations.
View Article and Find Full Text PDFStructures, or spatial arrangements of matter and energy, including some fields (e.g., velocity or pressure) are ubiquitous in research applications and frequently require description for subsequent analysis, or stochastic reconstruction from limited data.
View Article and Find Full Text PDFFolding a single high-genus surface into a repertoire of metamaterial functionalities.
Proc Natl Acad Sci U S A
November 2024
Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ 08544.
The concepts of origami and kirigami have often been presented separately. Here, we put forth a synergistic approach-the folded kirigami-in which kirigami assemblies are complemented by means of folding, typical of origami patterns. Besides the emerging patterns themselves, the synergistic approach also leads to topological mechanical metamaterials.
View Article and Find Full Text PDF"I Solemnly Swear": A Comparative Study of Codes of Professional Ethics amongst Pharmacists from Culturally Diverse European Countries.
Pharmacy (Basel)
September 2024
Departamento de Farmácia, Farmacologia e Tecnologias em Saúde, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
Ethical practice is a universal concern for healthcare professionals, independent of their social, cultural, or religious background. This study aimed to assess and categorise statements published in codes of ethics for pharmacists from three diverse societies within the wider European area. The study followed a qualitative exploratory and triangular design, comparing the leading professional and ethical statements between three geographically apart countries (Portugal, Lithuania, and Turkey) and using the International Pharmaceutical Federation Code of Ethics proposal as a gold standard.
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