A5061159318- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Quantum optics and atomic interactions
- Quantum Information and Cryptography
- Optical properties and cooling technologies in crystalline materials
- Numerical methods for differential equations
- Semiconductor Lasers and Optical Devices
- Cold Atom Physics and Bose-Einstein Condensates
- Photonic and Optical Devices
- Gyrotron and Vacuum Electronics Research
- Mechanical and Optical Resonators
- Advanced Measurement and Metrology Techniques
- Electromagnetic Simulation and Numerical Methods
- Advanced Surface Polishing Techniques
- Quantum Mechanics and Applications
- Advanced Thermodynamics and Statistical Mechanics
- Computational Physics and Python Applications
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Laser Material Processing Techniques
- Black Holes and Theoretical Physics
- Distributed and Parallel Computing Systems
- Cosmology and Gravitation Theories
- Magnetic confinement fusion research
- Quantum chaos and dynamical systems
Tatarstan Academy of Sciences
2011-2021
St Petersburg University
2009-2020
Kazan E. K. Zavoisky Physical-Technical Institute
2014
Russian Academy of Sciences
2013
Kazan Federal University
2013
State Optical Institute named after SI Vavilov
2006-2008
Maksymilian Pluta Institute of Applied Optics
2006-2007
Peter the Great St. Petersburg Polytechnic University
1999-2006
Physicotechnical Institute
1987
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
1986
Large and Deep Convolutional Neural Networks achieve good results in image classification tasks, but they need methods to prevent overfitting. In this paper we compare performance of different regularization techniques on ImageNet Scale Visual Recognition Challenge 2013. We show empirically that Dropout works better than DropConnect dataset.
A new experiment is described to detect a permanent electric dipole moment of the proton with sensitivity $10^{-29}e\cdot$cm by using polarized "magic" momentum $0.7$~GeV/c protons in an all-electric storage ring. Systematic errors relevant are discussed and techniques address them presented. The measurement sensitive physics beyond Standard Model at scale 3000~TeV.
A new method to determine the spin tune is described and tested. In an ideal planar magnetic ring, tune-defined as number of precessions per turn-is given by ν(s)=γG (γ Lorentz factor, G gyromagnetic anomaly). At 970 MeV/c, deuteron spins coherently precess at a frequency ≈120 kHz in Cooler Synchrotron COSY. The deduced from up-down asymmetry deuteron-carbon scattering. time interval 2.6 s, was determined with precision order 10^{-8}, 1×10^{-10} for continuous 100 s accelerator cycle. This...
We observe a deuteron beam polarization lifetime near 1000 s in the horizontal plane of magnetic storage ring (COSY). This long spin coherence time is maintained through combination bunching, electron cooling, sextupole field corrections, and suppression collective effects current limits. record required for search an intrinsic electric dipole moment on at statistical sensitivity level approaching 10^{-29} e cm.
Recently, great progress has been made in the creation of a solid-state quantum computer using superconducting qubits on Cooper pairs charged electrons. However, this approach met limitations due to decoherence effects caused by strong Coulomb interaction qubit with environment. Here, we propose solution problem switching another Bose-Einstein condensate (BEC), uncharged long-lived magnons, wherein magnon BEC can be realized blockade isolating pair energy levels mesoscopic and nanoscopic...
This report introduces the idea and concept of dynamic modeling paradigm for beamlines design. approach is based on two aspects: matrix formalism Lie algebraic methods object-oriented programming approach. Using these approaches permits to create a base an expert system studying beamlines. For creation corresponding databases knowledge bases computer algebra codes are used. Some aspects employment this discussed.
To search for proton Electric Dipole Moments (EDM) using storage ring with purely electrostatic elements, the concept of frozen spin method has been proposed [1]. This is based on two facts: in equation precession, magnetic field dependence entirely eliminated, and at “magic” energy, precession frequency coincides particle momentum. In case deuteron we have to use electrical simultaneously as will be explained later, keeping direction along momentum pure ring. this article, suggest...
The first realization of solid state quantum computer was demonstrated recently by using artificial atoms — transmons in superconducting resonator. Here, we propose a novel based on electrodynamic cavity coupling many nodes controlled atomic ensembles. contains memory and processing nodes. For the time, find optimal practically attainable parameters optical scheme for multimode photonic qubits with efficiency close to 100%. Then reveal self modes reversible transfer between node Also, iSWAP...
The possibility of implementing a controlled-NOT gate for frequency-encoded photonic qubits via six-wave mixing in multilevel atomic system is shown. Starting from the Hamiltonian cavity, equations motion amplitudes states are derived and solved framework input–output formalism. Analysis these solutions show how to realize two-qubit gates including relevant matching conditions.
To represent the space charge forces of beam a software based on analytical models for distributions was developed. Special algorithm predictor-corrector method map evaluation scheme including were used. This allows us to evaluate along reference trajectory and analyze envelope dynamics. In three dimensional number computing resources we use is significant. For this purpose graphical processors are part Virtual Accelerator concept which considered as set services tools modeling dynamics in...