A5001221725- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Cold Atom Physics and Bose-Einstein Condensates
- Photonic and Optical Devices
- Quantum Computing Algorithms and Architecture
- Laser-Matter Interactions and Applications
- Advanced Fluorescence Microscopy Techniques
- Advanced Optical Sensing Technologies
- Photonic Crystals and Applications
- Quantum and electron transport phenomena
- Nanofabrication and Lithography Techniques
- Parallel Computing and Optimization Techniques
- Color Science and Applications
- Plasmonic and Surface Plasmon Research
- Computational Physics and Python Applications
- Spectroscopy and Quantum Chemical Studies
- Random lasers and scattering media
- Image Enhancement Techniques
Moscow Institute of Physics and Technology
2019-2025
Skolkovo Institute of Science and Technology
2020-2025
Supervised quantum learning is an emergent multidisciplinary domain bridging between variational algorithms and classical machine learning. Here, we study experimentally a hybrid classifier model using hardware simulator (a linear array of four superconducting transmon artificial atoms) trained to solve multilabel classification image recognition problems. We train circuit on simple binary tasks, achieving accuracy around 95%, with data reuploading 90% when recognizing handwritten decimal...
In many problems, the scattering amplitudes of a weak coherent pulse are almost equivalent to ones single propagating photon. We thoroughly compare (i) short microwave from rf generator and (ii) vacuum-photon superposition two-level emitter, both directed system---the probe. To do that, we use two superconducting qubits implement emitter probe, strongly coupled same waveguide. However, with magnetic circulator couple field probe without reverse backaction, thereby working cascaded atomic...
This paper reports a method of manipulating surface plasmon resonance (SPR) by mechanically straining substrate to induce reconfigurations photonic nanostructures patterned above the with handling simplicity, operation practicality, application variety, and design flexibility. Results indicate that proposed linearly expands in xy-plane, switching SPR consequently changing perceived color. Comprehensive structural design, numerical evaluation, device fabrication, experimental verification,...
An electromagnetic wave propagating through a waveguide with strongly coupled two-level superconducting artificial atom exhibits an evolving superposition the atom. The Rabi oscillations in result from single excitation-relaxation, corresponding to photon absorption and stimulated emission field. In this study, we experimentally investigated time-dependent behavior of field transmitted transmon. scattered fields agree well predictions input-output theory. We demonstrate that time evolution...
A cascade of two-level superconducting artificial atoms -- a source and probe strongly coupled to semi-infinite waveguide is promising tool for observing nontrivial phenomena in quantum nonlinear optics. The atom can scatter an antibunched radiation emitted from the source, thereby generating field with specific properties. We experimentally demonstrate wave mixing between nonclassical light coherently cw-pumped another coherent acting on probe. observe unique features stationary spectrum...
Mixing of coherent pulses with different carrier frequencies by a two-level atom results in finite number sidebands the emitted spectrum. The authors studied dynamics mixing side components response to characteristics such as their number, amplitudes, durations, and overlapping.
Wave mixing in an optical medium is one of the fundamental nonlinear parametric processes. However, it has not yet been thoroughly studied on single atoms. This effect requires a strong coupling atoms to propagating waves and hard demonstrate with natural Nevertheless, possible investigate properties artificial superconducting coupled coplanar waveguides. We have prepared experimental setup developed topology chip. be used superpositions vacuum single-photon states coherent pulses An on-chip...
In many problems, the scattering amplitudes of weak coherent pulse are almost equivalent to ones single propagating photon. We thoroughly compare of: (i) short microwave from rf generator and (ii) vacuum-photon superposition two-level Emitter, both directed a system (the Probe). To do that, we use two superconducting qubits implement Emitter Probe, strongly coupled same waveguide. However, with magnetic circulator couple field Probe without reverse backaction, thereby working cascaded atomic...
Supervised quantum learning is an emergent multidisciplinary domain bridging between variational algorithms and classical machine learning. Here, we study experimentally a hybrid classifier model accelerated by simulator - linear array of four superconducting transmon artificial atoms trained to solve multilabel classification image recognition problems. We train circuit on simple binary multi-label tasks, achieving accuracy around 95%, with data re-uploading 90% when recognizing handwritten...
An electromagnetic wave propagating through a waveguide with strongly coupled superconducting artificial two-level atom exhibits an evolving superposition the atom. The Rabi oscillations in result from single excitation-relaxation, corresponding to photon absorption and stimulated emission from/to field. In this study, we investigate time-dependent behavior of transmitted field extract its spectra. scattered fields are described using input-output theory. We demonstrate that time evolution...