Experimental demonstration of continuous variable purification of squeezed states

We report on the first experimental demonstration of purification of nonclassical continuous variable states. The protocol uses two copies of phase-diffused states overlapped on a beam splitter and provides Gaussified, less mixed states with the degree of squeezing improved. The protocol uses only linear optical devices such as beam splitters and homodyne detection, thereby proving these optical elements can be used for successful purification of this type of state decoherence which occurs in optical transmission channels

Особенности морфологии уролитов жителей города Днепропетровска

Приведены первые результаты исследований морфологии уролитов жителей города Днепропетровска. Предложена типизация уролитов по особенностям их морфологии.Наведено перші результати досліджень морфології уролітов жителів міста Дніпропетровська. Запропонована типізація уролітов за особливостями їх морфології.The first results of studies of morphology nephrolyth residents of Dnipropetrovsk. A typing nephrolyth on the specifics of their morphology.

Semilinear wave equations on accelerated expanding FLRW spacetimes

We identify a large class of systems of semilinear wave equations, on fixed accelerated expanding FLRW spacetimes, with nearly flat spatial slices, for which we prove small data future global well-posedness. The family of systems we consider is large in the sense that, among other examples, it includes general wave maps, as well as natural generalizations of some of Fritz John’s “blowup” equations (whose future blowup disappears, in our setting, as a consequence of the spacetime expansion). We also establish decay upper bounds, which are sharp within the family of systems under analysis.info:eu-repo/semantics/acceptedVersio

Infusing a Course-Based Undergraduate Research Experience (CURE) into an Allied Health Curriculum

Purpose: Infusion of a course-based undergraduate research experience (CURE) into an existing research design course in an applied science curriculum allowed medical laboratory science students (n=22) to each be a contributing team member in a hand’s-on research experience, where most of the work was completed during the class time on campus. This design allowed for equal access, an equitable experience, and inclusion of all students enrolled in the course. Methods: Students and instructors worked together to develop a research question. The group agreed that the research question would be to determine the number of environmental specimens that were positive for mycobacteria species in residential plumbing specimens from different faucets and showerheads within residences in local areas. Before the actual collection of specimens, students reviewed the literature and completed more traditional modules in research ethics and Collaborative Institutional Training Initiative (CITI) training. Once that was completed, students designed and assembled the collection kits, collected and processed the specimens, and reported their results. Results: Students completed most tasks during the designated class time, and those tasks that had to be completed outside of class were not overwhelming for the students either in time or effort. The students’ reflections as the human subjects in this CURE indicated that 1) 90% of the students agreed they had a better understanding of the Institutional Review Board (IRB) process, 2) 100% of the students agreed the collection process was easily completed, 3) 100% of the students agreed the specimen testing was easily completed and interpreted, and 4) 100% of the students agreed the required parameters of a CURE were met. Conclusion: A CURE can be infused successfully into an applied science course allowing every student to become a contributing member of the research team

On the distillation and purification of phase-diffused squeezed states

Recently it was discovered that non-Gaussian decoherence processes, such as phase-diffusion, can be counteracted by purification and distillation protocols that are solely built on Gaussian operations. Here, we make use of this experimentally highly accessible regime, and provide a detailed experimental and theoretical analysis of several strategies for purification/distillation protocols on phase-diffused squeezed states. Our results provide valuable information for the optimization of such protocols with respect to the choice of the trigger quadrature, the trigger threshold value and the probability of generating a distilled state