ANALYSIS OF PUBLIC UNDERSTANDING OF NEW TECHNOLOGIES AND INNOVATIVE DEVELOPMENT IN UKRAINE: CURRENT PROBLEMS AND PERSPECTIVES

As Ukraine proclaimed the model of innovative economic development in 2001 and chose `the development of new and resources-economy technologies in the industry and the agricultural complex´ as one of the priority directions, this topic is of great interest for our society. Development of genetic engineering, biotechnology and their safe application are the most urgent questions. There are some biotechnological risks, which are highly discussed in mass media. They are: - transfer of artificial genetic constructions to genotype of existing organisms and appearance of more viable unhealthy organisms which can displace other organisms; - appearance of new albumen and biologically active substances which are harmful for people and animals. These problems are known as `biosafety´. Scientists of the world develop theoretical basis of `biosafety´, create legislative base which could provide health and environment protection. Our Ukrainian scientists have good results in biotechnology. There are some examples: microbe super synthesis of some important albumen; creation of bio-sensory systems for medicine and ecology; creation of new transgene plants. These investigations are biologically not so harmful as they are not used in practice yet. Another danger exists. Foreign biotechnological companies are interested in the promotion of their products at Ukrainian market. These products are very often not checked. Now in Ukraine transgenic products are being tested although it contradicts to our legislation. Thus, genetically modified potatoes are tested in Ukraine (resistant to Colorado beetle, MONSANTO Company), as well as corn (resistant to insects, NOVARTIS Company), sugar beet, etc. Committee for safety questions was established at the Ministry of Science and Technology. Some conditions of ecological safety are included in the laws of Ukraine, but some standard legislative acts contradict to the Ukrainian legislation. Scientists of Ukraine proclaimed the necessity of intensification of the state control on safety during works in genetic engineering and on entry of unaudited products in Ukraine. Moreover, they emphasized the necessity of cooperation with European Community in terms of biosafety. So, conferences, symposia on legislative regulation are held. Not only specialists take part in such discussions but also mass media, Internet visitors discuss them on-line. The raising of the interest in biotechnology and ecological safety on the part of society is also necessary to mention

All-atomic source of squeezed vacuum with full pulse-shape control

We report on the generation of pulses of a low-frequency squeezed vacuum with noise suppression >2 dB below the standard quantum limit in a hot resonant 87 Rb vapor with polarization self-rotation. We demonstrate the possibility to precisely control the temporal profile of the squeezed noise quadrature by applying a calibrated longitudinal magnetic field, without degrading the maximum amount of squeezing

Light storage in an optically thick atomic ensemble under conditions of electromagnetically induced transparency and four-wave mixing

We study the modification of a traditional electromagnetically induced transparency (EIT) stored light technique that includes both EIT and four-wave mixing (FWM) in an ensemble of hot Rb atoms. The standard treatment of light storage involves the coherent and reversible mapping of one photonic mode onto a collective spin coherence. It has been shown that unwanted, competing processes such as four-wave mixing are enhanced by EIT and can significantly modify the signal optical pulse propagation. We present theoretical and experimental evidence to indicate that while a Stokes field is indeed detected upon retrieval of the signal field, any information originally encoded in a seeded Stokes field is not independently preserved during the storage process. We present a simple model that describes the propagation dynamics of the fields and the impact of FWM on the spin wave.Comment: 13 pages, 10 figure

Improving Sensitivity of an Amplitude-Modulated Magneto-Optical Atomic Magnetometer using Squeezed Light

We experimentally demonstrate that a squeezed probe optical field can improve the sensitivity of the magnetic field measurements based on nonlinear magneto-optical rotation (NMOR) with an amplitude-modulated pump when compared to a coherent probe field under identical conditions. To realize an all-atomic magnetometer prototype, we utilize a nonlinear atomic interaction, known as polarization self-rotation(PSR), to produce a squeezed probe field. An independent pump field, amplitude-modulated at the Larmor frequency of the bias magnetic field, allows us to extend the range of most sensitive NMOR measurements to sub-Gauss magnetic fields. While the overall sensitivity of the magnetometer is rather low ($>250\mathrm{pT}/\sqrt{\mathrm{Hz}}$, we clearly observe a $15\%$ sensitivity improvement when the squeezed probe is used. Our observations confirm the recently reported quantum enhancement in a modulated atomic magnetometer arXiv:2108.01519 [quant-ph]