Zobrazeno 1 - 10
of 642
pro vyhledávání: '"Ustinov, Alexey"'
Autor:
Ovsienko, Valentin, Ustinov, Alexey
The recent notion of $q$-deformed irrational numbers is characterized by the invariance with respect to the action of the modular group $\PSL(2,\Z)$, or equivalently under the Burau representation of the braid group~$B_3$. The theory of $q$-deformed
Externí odkaz:
http://arxiv.org/abs/2408.13670
Feynman gave a famous elementary introduction to quantum theory by discussing the thin-film reflection of light. We make his discussion mathematically rigorous, keeping it elementary, using his other idea. The resulting model leads to accurate quanti
Externí odkaz:
http://arxiv.org/abs/2407.03258
Autor:
Aasen, Adrian Skasberg, Di Giovanni, Andras, Rotzinger, Hannes, Ustinov, Alexey V., Gärttner, Martin
Quantum technologies rely heavily on accurate control and reliable readout of quantum systems. Current experiments are limited by numerous sources of noise that can only be partially captured by simple analytical models and additional characterizatio
Externí odkaz:
http://arxiv.org/abs/2312.04211
Autor:
Kristen, Maximilian, Voss, Jan Nicolas, Wildermuth, Micha, Bilmes, Alexander, Lisenfeld, Jürgen, Rotzinger, Hannes, Ustinov, Alexey V.
Disordered thin films are a common choice of material for superconducting, high impedance circuits used in quantum information or particle detector physics. A wide selection of materials with different levels of granularity are available, but, despit
Externí odkaz:
http://arxiv.org/abs/2307.09078
Autor:
Kristen, Maximilian, Voss, Jan Nicolas, Wildermuth, Micha, Rotzinger, Hannes, Ustinov, Alexey V.
Publikováno v:
Appl. Phys. Lett. 122, 202602 (2023)
Microwave circuit electrodynamics of disordered superconductors is a very active research topic spawning a wide range of experiments and applications. For compact superconducting circuit elements, the transition to an insulating state poses a limit t
Externí odkaz:
http://arxiv.org/abs/2303.01079
Autor:
Stehli, Alexander, Brehm, Jan David, Wolz, Tim, Schneider, Andre, Rotzinger, Hannes, Weides, Martin, Ustinov, Alexey V.
Quantum simulation is one of the most promising near term applications of quantum computing. Especially, systems with a large Hilbert space are hard to solve for classical computers and thus ideal targets for a simulation with quantum hardware. In th
Externí odkaz:
http://arxiv.org/abs/2211.14586
Autor:
Skopenkov, Mikhail, Ustinov, Alexey
We present a new completely elementary model that describes the creation, annihilation, and motion of non-interacting electrons and positrons along a line. It is a modification of the model known under the names Feynman checkers or one-dimensional qu
Externí odkaz:
http://arxiv.org/abs/2208.14247
Publikováno v:
npj Quantum information 9, 8 (2023)
In the endeavour to make quantum computers a reality, integrated superconducting circuits have become a promising architecture. A major challenge of this approach is decoherence originating from spurious atomic tunneling defects at the interfaces of
Externí odkaz:
http://arxiv.org/abs/2208.01570
Autor:
Spiecker, Martin, Paluch, Patrick, Gosling, Nicolas, Drucker, Niv, Matityahu, Shlomi, Gusenkova, Daria, Günzler, Simon, Rieger, Dennis, Takmakov, Ivan, Valenti, Francesco, Winkel, Patrick, Gebauer, Richard, Sander, Oliver, Catelani, Gianluigi, Shnirman, Alexander, Ustinov, Alexey V., Wernsdorfer, Wolfgang, Cohen, Yonatan, Pop, Ioan M.
Publikováno v:
Nat. Phys. 19, 1320 (2023)
The innate complexity of solid state physics exposes superconducting quantum circuits to interactions with uncontrolled degrees of freedom degrading their coherence. By using a simple stabilization sequence we show that a superconducting fluxonium qu
Externí odkaz:
http://arxiv.org/abs/2204.00499
Autor:
Brehm, Jan David, Gebauer, Richard, Stehli, Alexander, Poddubny, Alexander N., Sander, Oliver, Rotzinger, Hannes, Ustinov, Alexey V.
The rapid progress in quantum information processing leads to a rising demand for devices to control the propagation of electromagnetic wave pulses and to ultimately realize a universal and efficient quantum memory. While in recent years significant
Externí odkaz:
http://arxiv.org/abs/2202.07034