Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Pogosov, A. V."'
Autor:
Dmitriev, A. Yu., Vasenin, A. V., Gunin, S. A., Remizov, S. V., Elistratov, A. A., Pogosov, W. V., Astafiev, O. V.
A cascade of two-level superconducting artificial atoms -- a source and a probe -- strongly coupled to a semi-infinite waveguide is a promising tool for observing nontrivial phenomena in quantum nonlinear optics. The probe atom can scatter an antibun
Externí odkaz:
http://arxiv.org/abs/2409.10975
Autor:
Avtandilyan, A. A., Pogosov, W. V.
The potential of employing higher orders of the Trotter-Suzuki decomposition of the evolution operator for more effective simulations of quantum systems on a noisy quantum computer is explored. By examining the transverse-field Ising model and the XY
Externí odkaz:
http://arxiv.org/abs/2405.01131
Autor:
Belov, V. V., Pogosov, W. V.
We conduct a numerical investigation of the dynamics of the central spin model in the presence of measurement processes. This model holds promise for experimental exploration due to its topology, which facilitates the natural distinction of a central
Externí odkaz:
http://arxiv.org/abs/2404.15717
Quantum computers can be used for the solution of various problems of mathematical physics. In the present paper, we consider a discretized version of the heat equation and address its solution on quantum computer using variational Anzats tree approa
Externí odkaz:
http://arxiv.org/abs/2404.14102
Quantum error mitigation in the regime of high noise using deep neural network: Trotterized dynamics
Autor:
Zhukov, A. A., Pogosov, W. V.
Publikováno v:
Quantum Inf Process 23, 80 (2024)
We address a learning-based quantum error mitigation method, which utilizes deep neural network applied at the postprocessing stage, and study its performance in presence of different types of quantum noises. We concentrate on the simulation of Trott
Externí odkaz:
http://arxiv.org/abs/2310.13382
We apply the scattering matrix formalism to wave mixing on a quantum two-level system. We carry out the fermionization of the two-level system degrees of freedom using the Popov-Fedotov semions, calculate n-particle Green's function, and apply the Le
Externí odkaz:
http://arxiv.org/abs/2309.01444
Publikováno v:
Phys. Rev. A 107, 052422 (2023)
Variational quantum algorithms are a promising tool for solving partial differential equations. The standard approach for its numerical solution are finite difference schemes, which can be reduced to the linear algebra problem. We consider three appr
Externí odkaz:
http://arxiv.org/abs/2212.12375
Autor:
Babukhin, D. V., Pogosov, W. V.
Publikováno v:
Quantum Inf Process 21, 7 (2022)
Quantum walks are an analog of classical random walks in quantum systems. Quantum walks have smaller hitting times compared to classical random walks on certain types of graphs, leading to a quantum advantage of quantum-walks-based algorithms. An imp
Externí odkaz:
http://arxiv.org/abs/2110.15153
Publikováno v:
Phys. Rev. A 104, 023703 (2021)
We theoretically consider wave mixing under the irradiation of a single qubit by two photon fields. The first signal is a classical monochromatic drive, while the second one is a nonclassical light. Particularly, we address two examples of a nonclass
Externí odkaz:
http://arxiv.org/abs/2107.10769
Autor:
Mazhorin, Grigoriy S., Moskalenko, Ilya N., Besedin, Ilya S., Shapiro, Dmitriy S., Remizov, Sergey V., Pogosov, Walter V., Moskalev, Dmitry O., Pishchimova, Anastasia A., Dobronosova, Alina A., Rodionov, I. A., Ustinov, Alexey V.
Publikováno v:
Phys. Rev. A 105, 033519 (2022)
We explore experimentally a quantum metamaterial based on a superconducting chip with 25 frequency-tunable transmon qubits coupled to a common coplanar resonator. The collective bright and dark modes are probed via the microwave response, i.e., by me
Externí odkaz:
http://arxiv.org/abs/2107.01420