A5051000303- Quantum and electron transport phenomena
- Quantum Information and Cryptography
- Physics of Superconductivity and Magnetism
- Quantum optics and atomic interactions
- Cold Atom Physics and Bose-Einstein Condensates
- Surface and Thin Film Phenomena
- Topological Materials and Phenomena
- Quantum many-body systems
- Quantum Mechanics and Applications
- Liquid Crystal Research Advancements
- Semiconductor Quantum Structures and Devices
- Rheology and Fluid Dynamics Studies
- Quantum Computing Algorithms and Architecture
- Iron-based superconductors research
- Neural Networks and Reservoir Computing
- Enhanced Oil Recovery Techniques
- Spectroscopy and Quantum Chemical Studies
- Petroleum Processing and Analysis
- Magnetic and transport properties of perovskites and related materials
- Nonlinear Dynamics and Pattern Formation
- Molecular Junctions and Nanostructures
- Advanced Condensed Matter Physics
- Spectral Theory in Mathematical Physics
- Graphene research and applications
- Atomic and Subatomic Physics Research
National Research University Higher School of Economics
2022-2025
Institute of Radio-Engineering and Electronics
2012-2025
All Russia Research Institute of Automatics
2015-2025
Russian Academy of Sciences
1997-2021
Federal Research Centre Coal and Coal Chemistry
2021
Kuzbass Institute of Economics and Law
2021
Moscow Institute of Physics and Technology
2011
Lomonosov Moscow State University
1995
We demonstrate nonequilibrium steady-state photon transport through a chain of five coupled artificial atoms simulating the driven-dissipative Bose-Hubbard model. Using transmission spectroscopy, we show that system retains many-particle coherence despite being strongly to two open spaces. find cross-Kerr interaction between states allows high-contrast spectroscopic visualization emergent energy bands. For vanishing disorder, observe transition from linear nonlinear regime blockade in...
In this work, we study the low-energy properties of spin-boson model (SBM), which describes dynamics a 1/2 spin associated with thermostat characterized by power law spectral density, $f(\omega)\propto |\omega|^s$. The theoretical description is constructed in Schwinger--Keldysh technique, based on representation 1/2-spin Majorana fermions. We critical system near quantum phase transition constructing and analyzing renormalization group equations. Our approach more universal, contrary to one...
We report on structural and electronic properties of superconducting nanohybrids made Pb grown in the ultrahigh vacuum atomically clean surface single crystals topological Bi2Te3. In situ scanning tunneling microscopy spectroscopy demonstrated that resulting network is composed Pb-nanoislands dispersed linked together by an amorphous atomic layer Pb, which wets As a result, state system characterized thickness-dependent gap Pb-islands very unusual position-independent proximity between them....
A new non-Fermi-liquid state of quasi-one-dimensional conductors is suggested in which electronic system exists a form collection bounded Luttinger liquids stabilized by impurities. This shown to be stable towards interchain electron hopping at low temperatures. Electronic spectrum the contains zero modes and collective excitations segments between Zero give rise randomly distributed localized levels, long-range interaction generates Coulomb gap density states Fermi energy. Mechanism...
We consider a dissipative evolution of parametrically-driven qubits-cavity system under the periodical modulation coupling energy between two subsystems, which leads to amplification counterrotating processes. reveal very rich dynamical behavior this hybrid system. In particular, we find that dissipation in one subsystems can enhance quantum effects another subsystem. For instance, optimal cavity decay assists stabilize entanglement and correlations qubits even steady state compensate finite...
We explore experimentally a quantum metamaterial based on superconducting chip with 25 frequency-tunable transmon qubits coupled to common coplanar resonator. The collective bright and dark modes are probed via the microwave response, i.e., by measuring transmission amplitude of an external signal. All have individual control readout lines. Their frequency tunability allows number $N$ resonantly change disorder in their excitation frequencies be introduced preassigned distributions. While...
The influence of individual impurities Fe on the electronic properties topological insulator Bi2Se3 is studied by Scanning Tunneling Microscopy. microscope tip used in order to remotely charge/discharge impurities. charging process shown depend impurity location crystallographic unit cell, presence other close vicinity, and overall doping level crystal. We present a qualitative explanation observed phenomena terms tip-induced local band bending. Our observations evidence that specific...
Abstract— LCDs with internal polarizers were designed and fabricated as production prototype TN‐LCDs. Optiva™ Thin Crystalline Films (TCFs) used the for these displays. The design processes fabrication of a TN‐LCD Optiva will be discussed.
We analytically study stability of sliding lattice Josephson vortices driven by a transport current in the stack direction strong in-plane magnetic field. In contrast to recent findings we obtain that there are no diverse configurations stable vortex lattices, and, hence, cannot be selected boundary conditions. find bulk samples only triangular (rhombic) can stable, its being limited critical velocity value. At higher velocities simple lattices with single flux line per unit cell. Oblique...
Abstract— We have developed a new technique for the production of thin crystal film (TCF) by deposition, molecular alignment, and drying water‐based lyotropic‐liquid‐crystal (LLC) materials. TCF exhibits high optical anisotropy birefringence. This paper presents liquid‐crystal‐display (LCD) applications opportunities plastic sheet polarizers, retarders, color‐correction films as well LCD designs with internal polarizers.
We propose a technique of simultaneous excitation disordered qubits providing an effective suppression inhomogeneous broadening in their spectral density. The is based on applying optimally chosen $\ensuremath{\pi}$ pulse with smooth nonrectangular shape. study dynamics off-resonant qubit subjected to strong classical electromagnetic driving field large reference frequency and slow envelope. Within this solution we optimize the envelope achieve preassigned accuracy synchronization.
Using a phenomenological approach based on the fluctuation-dissipation theorem we calculate suppression of superconducting currents due to phase fluctuations and find that, in contrast recent prediction, effect thermal cannot account for linear temperature dependence superfluid density high-T(c) superconductors at low temperatures. Quantum are found dominate over Near T(c) sizable suppress critical current stack direction stronger than along layers. The spectral voltage small frequencies is...
The analysis of single-mode photon fluctuations and their counting statistics at the superradiant phase transition is presented. study concerns equilibrium Dicke model in a regime where Rabi frequency, related to coupling mode with finite-number qubit environment, plays role transition's control parameter. We use effective Matsubara action formalism based on representation Pauli operators as bilinear forms complex Majorana fermions. Then, we address order parameter quasiparticles. average...