Quantum Cryptography
Optical amplification, quantum non demolition measurements and optimal quantum cloning. Photon pairs generated by parametric down conversion. Random number generators. Experimental cryptography with Faint laser pulses. Multi-users implementations.
Подобные документы
The study of the quantum nature of light and its interaction with matter. Mixed States of the electromagnetic field and electrodynamics in the frequency domain. The concept of probability and random variables. Experiments in optical homodyne tomography.
монография, добавлен 08.03.2014A framework for effective equations of expectation values in quantum cosmology and pose for them the quantum Cauchy problem with tunneling wavefunctions. The eld-theoretical sector of inhomogeneous modes. The technique of manifest quantum reduction.
научная работа, добавлен 09.09.2012A quantum mechanical system in different frames of reference. Linearly accelerated frame and equivalence principle. Rotating frame, coriolis and centrifugal forces. Evolution of a state vector in quantum mechanics as a kind of parallel transport.
статья, добавлен 11.09.2012The quantum theory of a free real scalar eld as one of the few quantum eld theories that are exactly soluble. The classical structures as relevant for quantization and is used for constructing the Schrodinger representation in the general case.
статья, добавлен 09.09.2012Establishment of a system of equations for quantum electrodynamics in which an electron, like any other charge, has an electric and a magnetic field. Description of the eigenvector fields using scalar and vector potentials satisfying the equations.
статья, добавлен 28.04.2017Modern cosmological models describing the macrocosm. A comparative estimate of the maximum lifetime of a de Sitter universe obtained by the method of Don Page and made in the framework of string theory. Paradoxes of phantom energy and quantum mechanics.
статья, добавлен 23.06.2018Terahertz emitters - polaritonbased devices, where signals are generated from transitions between upper and lower polariton branches or bosonic cascade lasers. Band diagram of the double quantum wells system. Energy diagram of the dipolariton system.
статья, добавлен 30.07.2016The problems of quantum gravity, the search for consistent schemes for the equations in quantum field theory. Perturbation theory and the Schwinger-DeWitt technique. A regular covariant method is for expanding the one-loop action in powers of curvatures.
книга, добавлен 09.09.2012The formulation of a metric model that satisfies the requirements of quantum theory. Description of gravitational waves by the Liouville equation. Proof of the Schrodinger conjecture on the connection between the wave function and gravitational waves.
статья, добавлен 13.05.2017Particularly testing for the existence of the Aharonov-Bohm effect with electronics holography. A cross-sectional diagrams of an electron microscope with cooling apparatus. Consideration of the value of the electromagnetic potentials in quantum mechanics.
статья, добавлен 11.09.2012Using the general formalism of quantum theory of resonance scattering amplitudes for the construction process with the formation of an intermediate resonance in the incident particle and the nucleus. The energy distributions of the emitted nuclei.
статья, добавлен 09.10.2013Verlinde's alternative concept of quantum gravity within Whitehead's concept of observability. Database of observed facts according to Whitehead. Big bang as an ideal of nonexistence. Giant Carnot Cycle as the Universe of the Great Leap Forward.
статья, добавлен 28.04.2023Description of the method for solving the one-dimensional stationary Schrodinger equation. Fourier Transformation of the wave equation. The discrete energy levels. Analysis based on a quantum-well device. The functional dependence of the potential well.
статья, добавлен 30.07.2016The theory of wave multiple scattering of the Lippmann-Schwinger integral equation for the tensor of the operator of quantum mechanical scattering of an electric field by a non-magnetic particle. Wave coupling between the elements of a particle.
научная работа, добавлен 05.11.2018Review and analysis of physical and numerical modeling of the field emission energy conversion nanoscale systems. Study and characterization of the main features of the systems with a cathodes based on an array of carbon nanotubes or quantum dots.
статья, добавлен 30.07.2016Study of the history of origin of the basic concepts of optical resonators and lensguides, development of new concepts and still further knowledge in this area in the first decade of the laser era. The technical aspects of optical beams and resonators.
статья, добавлен 09.09.2012The review for different devices: Infrared sensor arrays for thermal imaging on active Si read-out chips, resonant cavity enhanced IR detectors, quantum well lasers on Si substrates and "wavelength transformers", structures operated in sub-threshold.
статья, добавлен 28.06.2013We consider the formulation of the problem in which Monte Carlo methods are used to assess the quality of pseudo-random sequence generators. A criterion is formulated for optimizing pseudo-random sequence generators with a uniform distribution law.
статья, добавлен 07.11.2018Laser as a distinctive type of optical light with special characteristics that combine wavelength, direction and similarity. The use of the laser as the most effective type of physical effect in medicine, especially in the treatment of skin lesions.
статья, добавлен 12.06.2018The possibility of the two-step triggering of nuclear isomers by short X-ray laser pulses via an excited intermediate level. The estimations of the decay acceleration are performed for the isomer of 84-Rb in the field of future European X-ray laser.
статья, добавлен 19.09.2013The classical electromagnetic lag. Use of the darwin-lagrangian analysis. Calculation of the aharonov-bohm phase shift. Experimental tests for velocity changes. The test for electromagnetic lag in the quantum topological description of the phase shift.
статья, добавлен 11.09.2012The proposing of the experimental confirmation of results, which have been previously obtained in theory and by means of simulation, revealing existence of the hardest mode of broadband random vibration (BRV) during its effect on mechanical systems.
статья, добавлен 06.05.2018Characteristic features of lasers operating in continuous-wave or quasi-CW regimes generate a restricted output optical power, which is limited by a maximum available pump power. Analysis Raman spectrum measured for the graphene-deposited fibre ferrule.
статья, добавлен 29.01.2016Technologies for voltage control of self-excited induction generators. An approach for maximizing the power extracted from self-excited induction generators in specific applications without strict restrictions on the generated frequency and voltage.
статья, добавлен 24.06.2016Description of the experimental stand of a multi-motor hydraulic drive providing synchronous movement of motors. An automated control system for the movement of elements of a multi-motor hydraulic drive. Creation of a model for calculating motion errors.
статья, добавлен 22.02.2021