Quantum teleportation of optical images with frequency conversion

We describe a new version of continuous variables quantum holographic teleportation of optical images. Unlike the previously proposed scheme, it is based on the continuous variables quantum entanglement between the light fields of different frequencies and allows for the wavelength conversion between the original and the teleported images. The frequency tunable holographic teleportation protocol can be used as a part of light-matter interface in parallel quantum information processing and parallel quantum memoryComment: 4 pages, 3 Postscript figures, RevTeX

多元化工业公司在生命周期不同阶段的业务单元策略

The paper considers the models of organisational development of multidisciplinary companies and their business units. It is shown that the existing models need to be supplemented with two enlarged managerial competencies – management of incremental (modification) innovations and management of radical innovations. The proposed model of a business unit assumes that their development is structured as a progressive passage of the organisation through the stages of housing and communal services by developing the necessary managerial competencies for the next stage. The developed general models are used to form models of organisational development of the “Severgroup”  multidisciplinary corporation and its business units. The strategic portfolio of business units, its parameters and position within the framework of the matrix of housing and communal services of the industry are determined. The result of the study was the formulation of two strategies – “growth to the core” and “growth to the peak”. Models of organisational development of the corporation (changes in the composition and characteristics of the portfolio of business units) and models of transfer of managerial competencies have been developed for each strategy.В статье рассмотрены модели организационного развития многопрофильных компаний и входящих в них бизнес-единиц. Показано, что существующие модели необходимо дополнить двумя укрупненными управленческими компетенциями – управлением инкрементальными (модификационными) инновациями и управлением радикальными инновациями. Предлагаемая модель бизнес-единицы предполагает, что их развитие структурируется как поступательное прохождение организацией этапов жизненного цикла организации путем развития необходимых для следующего этапа управленческих компетенций. Разработанные общие модели использованы для формирования моделей организационного развития многопрофильной корпорации «Севергрупп» и входящих в нее бизнес-единиц. Определен стратегический портфель бизнес-единиц, его параметры и позиция в рамках матрицы жизненный цикл организации – жизненный цикл отрасли. Результатом проведенного исследования стала формулировка двух стратегий – «рост к ядру» и «рост к пику». Для каждой стратегии разработаны модели организационного развития корпорации (изменение состава и характеристик портфеля бизнес-единиц) и модели трансфера управленческих компетенций.文章研究了多元公司及其业务单位的组织发展模式｡结果表明﹐现有的模式需要补充两个扩大的管理能力——管理渐进式创新和管理激进式创新｡建议的业务单元模型假定﹐它通过发展下一阶段所需的管理能力﹐在组织生命周期的各个阶段逐步开发｡所开发的一般模型被用来为多元的Severgroup公司及其业务单位形成组织发展模型｡确定了业务单位的战略组合﹑其参数和在“组织生命周期——行业生命周期”矩阵中的位置｡这项研究的结果是制定了两项战略——“发展到核心”和“发展到高峰”｡对于每一项战略﹐都制定了公司组织发展的模式（改变业务单元组合的构成和特点）和管理能力转移的模式

Quantum memory for images - a quantum hologram

Matter-light quantum interface and quantum memory for light are important ingredients of quantum information protocols, such as quantum networks, distributed quantum computation, etc. In this Letter we present a spatially multimode scheme for quantum memory for light, which we call a quantum hologram. Our approach uses a multi-atom ensemble which has been shown to be efficient for a single spatial mode quantum memory. Due to the multi-atom nature of the ensemble it is capable of storing many spatial modes, a feature critical for the present proposal. A quantum hologram has a higher storage capacity compared to a classical hologram, and is capable of storing quantum features of an image, such as multimode superposition and entangled quantum states, something that a standard hologram is unable to achieve. Due to optical parallelism, the information capacity of the quantum hologram will obviously exceed that of a single-mode scheme.Comment: 5 pages, 3 figure

Characteristics of the electric field accompanying a longitudinal acoustic wave in a metal. Anomaly in the superconducting phase

The temperature dependence of the amplitude and phase of the electric potential arising at a plane boundary of a conductor when a longitudinal acoustic wave is incident normally on it is investigated theoretically and experimentally. The surface potential is formed by two contributions, one of which is spatially periodic inside the sample, with the period of the acoustic field; the second is aperiodic and arises as a result of an additional nonuniformity of the electron distribution in a surface layer of the metal. In the nonlocal region the second contribution is dominant. The phases of these contributions are shifted by approximately \pi /2. For metals in the normal state the experiment is in qualitative agreement with the theory. The superconducting transition is accompanied by catastrophically rapid vanishing of the electric potential, in sharp contrast to the theoretical estimates, which predict behavior similar to the BCS dependence of the attenuation coefficient for a longitudinal sound.Comment: 9 pages, 6 figure

Studying grain-boundary stresses in copper by the molecular-statics method

Grain-boundary stresses in copper for 60 symmetrical tilt grain boundaries with different orientations of the grain-boundary plane and tilt axis have been calculated by the molecular-statics method with the use of embedded-atom-method potentials of interatomic interactionyesBelgorod State Universit

STRATEGIES OF BUSINESS UNITS OF DIVERSIFIED INDUSTRIAL COMPANIES AT DIFFERENT STAGES OF THE LIFE CYCLE

The paper considers the models of organisational development of multidisciplinary companies and their business units. It is shown that the existing models need to be supplemented with two enlarged managerial competencies – management of incremental (modification) innovations and management of radical innovations. The proposed model of a business unit assumes that their development is structured as a progressive passage of the organisation through the stages of housing and communal services by developing the necessary managerial competencies for the next stage. The developed general models are used to form models of organisational development of the “Severgroup”  multidisciplinary corporation and its business units. The strategic portfolio of business units, its parameters and position within the framework of the matrix of housing and communal services of the industry are determined. The result of the study was the formulation of two strategies – “growth to the core” and “growth to the peak”. Models of organisational development of the corporation (changes in the composition and characteristics of the portfolio of business units) and models of transfer of managerial competencies have been developed for each strategy