Zobrazeno 1 - 10
of 227
pro vyhledávání: '"N Rubtsov"'
Autor:
Mikhail V. Umanskii, Alexey N. Rubtsov
Publikováno v:
Entropy, Vol 26, Iss 6, p 493 (2024)
Gaussian boson sampling (GBS) is considered a candidate problem for demonstrating quantum advantage. We propose an algorithm for the approximate classical simulation of a lossy GBS instance. The algorithm relies on the Taylor series expansion, and in
Externí odkaz:
https://doaj.org/article/5943d47befe24350b229a2e5cb0486f1
Autor:
Mikhail Umanskii, Alexey N. Rubtsov
Publikováno v:
Entropy, Vol 25, Iss 2, p 210 (2023)
The original formulation of the boson sampling problem assumed that little or no photon collisions occur. However, modern experimental realizations rely on setups where collisions are quite common, i.e., the number of photons M injected into the circ
Externí odkaz:
https://doaj.org/article/a7ecfda502f1462b9d8dd42d82b93641
Autor:
Yana S. Lyakhova, Alexey N. Rubtsov
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 35:2169-2173
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6834cf6ff4f891959216ecccdff3ae
https://doi.org/10.1007/s10948-022-06303-8
https://doi.org/10.1007/s10948-022-06303-8
Publikováno v:
New Journal of Physics, Vol 23, Iss 3, p 033015 (2021)
Dynamical mean field theory (DMFT) is used to study neutron matter, both with and without admixture of the proton fraction. The system is approximated by the lattice Hubbard model. The corresponding equation of state as a function of temperature/dens
Externí odkaz:
https://doaj.org/article/ec26348899da46feafea7945744f7417
Publikováno v:
Nanophotonics.
Coherent control of quantum systems with phase-stable pulses offers enticing new opportunities for lightwave electronics. Here we extend this approach to many-body systems with spin degrees of freedom, demonstrating that a single few-cycle control pu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f12250dffd80321a99871219fb9e902f
https://doi.org/10.1515/nanoph-2022-0811
https://doi.org/10.1515/nanoph-2022-0811
Publikováno v:
Photonics, Vol 2, Iss 2, Pp 449-458 (2015)
We consider a disordered quantum metamaterial formed by an array of superconducting flux qubits coupled to microwave photons in a cavity. We map the system on the Tavis-Cummings model accounting for the disorder in frequencies of the qubits. The comp
Externí odkaz:
https://doaj.org/article/60e0a8a363d648e7ba2c7cb8cea5037c
Publikováno v:
Physics-Uspekhi.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::027964026c2ffe15faba1ef0e72dcebc
https://doi.org/10.3367/ufne.2022.09.039231
https://doi.org/10.3367/ufne.2022.09.039231
Autor:
N N Rubtsov
Publikováno v:
RUDN journal of Sociology, Vol 0, Iss 3, Pp 121-134 (2014)
The central problem of the modern financial system is finding a mechanism for its stabilization and overcoming its imbalance and constant commitment to systemic risks. The author believes the solution of this problem lies in the fundamental change of
Externí odkaz:
https://doaj.org/article/e9b5bed7425e445e8b1acd5992fd2d60
Publikováno v:
SciPost Physics, Vol 7, Iss 2, p 016 (2019)
In this work we introduce a modified real-time continuous-time hybridization-expansion quantum Monte Carlo solver for a time-dependent single-orbital Anderson impurity model: CT-1/2-HYB-QMC. In the proposed method the diagrammatic expansion is perfo
Externí odkaz:
https://doaj.org/article/9373bd6c3f28455bbf8499369bd9e76f