26 citations · 94 across the 13 of their papers we have counts for
13 papers
Harmonics of femtosecond and continuous-wave radiation for precision spectroscopy: generation efficiency and spectral line shape
Nikita Zhadnov, Olga Khronusova, Alexey Russkikh +2
Precision spectroscopy in the UV and VUV ranges, including spectroscopy of the thorium-229 nuclear transition (148.4 nm), requires narrow-band sources obtained by frequency multipl…
Analysis of the action of conventional trapped-ion entangling gates in qudit space
Pavel Kamenskikh, Nikita Semenin, Ilia Zalivako +4
Qudits, or multi-level quantum information carriers, present a promising path for scaling quantum computers. However, their use introduces increased complexity in quantum logic, ne…
Coherence of Microwave and Optical Qubit Levels in Neutral Thulium
Denis Mishin, Dmitry Tregubov, Nikolay Kolachevsky +1
Hyperfine-encoded qubits in alkali atoms have established themselves as robust platforms for quantum computing, while alkaline-earth-like elements expand the state manipulation too…
Experimental factoring integers using fixed-point-QAOA with a trapped-ion quantum processor
Ilia V. Zalivako, Andrey Yu. Chernyavskiy, Anastasiia S. Nikolaeva +10
Factoring integers is considered as a computationally-hard problem for classical methods, whereas there exists polynomial-time Shor's quantum algorithm for solving this task. Howev…
Detection states of ions in a Paul trap via conventional and quantum machine learning algorithms
Ilia Khomchenko, Andrei Fionov, Artem Alekseev +4
Trapped ions are among the leading platforms for quantum technologies, particularly in the field of quantum computing. Detecting states of trapped ions is essential for ensuring hi…
Optimized surface ion trap design for tight confinement and separation of ion chains
Ilya Gerasin, Nikita Zhadnov, Konstantin Kudeyarov +3
Qubit systems based on trapped ultracold ions win one of the leading positions in the quantum computing field, demonstrating quantum algorithms with the highest complexity to date.…
Scalable improvement of the generalized Toffoli gate realization using trapped-ion-based qutrits
Anastasiia S. Nikolaeva, Ilia V. Zalivako, Alexander S. Borisenko +8
An efficient implementation of the Toffoli gate is of conceptual importance for running various quantum algorithms, including Grover's search and Shor's integer factorization. Howe…
Demonstration of a parity-time symmetry breaking phase transition using superconducting and trapped-ion qutrits
Alena S. Kazmina, Ilia V. Zalivako, Alexander S. Borisenko +21
Scalable quantum computers hold the promise to solve hard computational problems, such as prime factorization, combinatorial optimization, simulation of many-body physics, and quan…
Continuous dynamical decoupling of optical Yb qudits with radiofrequency fields
Ilia V. Zalivako, Alexander S. Borisenko, Ilya A. Semerikov +9
The use of multilevel quantum information carriers, also known as qudits, attracts a significant deal of interest as a way for further scalability of quantum computing devices. How…
Deep Laser Cooling of Thulium Atoms to Sub-K Temperatures in Magneto-Optical Trap
Daniil Provorchenko, Dmitry Tregubov, Denis Mishin +6
Deep laser cooling of atoms, ions, and molecules facilitates the study of fundamental physics as well as applied research. In this work, we report on the narrow-line laser cooling…
Long 48-cm ULE cavities in vertical and horizontal orientations for Sr optical clock
Nikita Zhadnov, Konstantin Kudeyarov, Denis Kryuchkov +3
The development of an optical clock with ultimate accuracy and stability requires lasers with very narrow linewidth. We present two ultrastable laser systems based on 48 cm long Fa…
Compact transportable 171Yb+ single-ion optical fully automated clock with 4.9E-16 relative instability
Timur Abbasov, Konstantin Makarenko, Ivan Sherstov +10
The paper describes the results achieved in the development of the compact transportable fully automated optical clock based on a single 171Yb+ ion in a radiofrequency (RF) quadrup…
Excitation of Th nuclei in laser plasma: the energy and half-life of the low-lying isomeric state
P. V. Borisyuk, E. V. Chubunova, N. N. Kolachevsky +3
The results of experimental studies of the low-energy isomeric state in the Th nucleus are presented. The work is consisted of several stages. During the first stage $^{229…