Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Kuzmin, Roman"'
Autor:
Burshtein, Amir, Shuliutsky, David, Kuzmin, Roman, Manucharyan, Vladimir E., Goldstein, Moshe
Instantons, semi-classical trajectories of quantum tunneling in imaginary time, have long been used to study thermodynamic and transport properties in a myriad of condensed matter and high energy systems. A recent experiment in superconducting circui
Externí odkaz:
http://arxiv.org/abs/2410.23062
Autor:
Kuzmin, Roman, Mehta, Nitish, Grabon, Nicholas, Mencia, Raymond A., Burshtein, Amir, Goldstein, Moshe, Manucharyan, Vladimir E.
Although quantum mechanics applies to many macroscopic superconducting devices, one basic prediction remained controversial for decades. Namely, a Josephson junction connected to a resistor must undergo a dissipation-induced quantum phase transition
Externí odkaz:
http://arxiv.org/abs/2304.05806
We revisit the superstrong coupling regime of multi-mode cavity quantum electrodynamics (QED), defined to occur when the frequency of vacuum Rabi oscillations between the qubit and the nearest cavity mode exceeds the cavity's free spectral range. A n
Externí odkaz:
http://arxiv.org/abs/2210.14681
It is customary to use arrays of superconducting quantum interference devices (SQUIDs) for implementing magnetic field-tunable inductors. Here, we demonstrate an equivalent tunability in a (SQUID-free) array of single Al/AlOx/Al Josephson tunnel junc
Externí odkaz:
http://arxiv.org/abs/2210.12119
Decay of a particle into more particles is a ubiquitous phenomenon to interacting quantum systems, taking place in colliders, nuclear reactors, or solids. In a non-linear medium, even a single photon would decay by down-converting (splitting) into lo
Externí odkaz:
http://arxiv.org/abs/2203.17186
Autor:
Kozlovski Vitali, Lebedev Alexander, Kuzmin Roman, Malevsky Dmitry, Levinshtein Mikhail, Oganisyan Gagik
Publikováno v:
St. Petersburg Polytechnical University Journal: Physics and Mathematics, Vol 17, Iss 1 (2024)
In the paper, the effects of type, dose and temperature of irradiation with stable elementary particles (0.9 MeV electrons and 15 MeV protons) on the properties of the high-voltage 4H-SiC Junction Barrier Schottky diodes at room temperature (23°С)
Externí odkaz:
https://doaj.org/article/8b2ab73198a54495b288b461a641bf22
Autor:
Somoroff, Aaron, Ficheux, Quentin, Mencia, Raymond A., Xiong, Haonan, Kuzmin, Roman V., Manucharyan, Vladimir E.
Increasing the degree of control over physical qubits is a crucial component of quantum computing research. We report a superconducting qubit of fluxonium type with the Ramsey coherence time reaching $T_2^*= 1.48 \pm 0.13 \mathrm{~ms}$, which exceeds
Externí odkaz:
http://arxiv.org/abs/2103.08578
Publikováno v:
Phys. Rev. Lett. 126, 137701 (2021)
Instantons, spacetime-localized quantum field tunneling events, are ubiquitous in correlated condensed matter and high energy systems. However, their direct observation through collisions with conventional particles has not been considered possible.
Externí odkaz:
http://arxiv.org/abs/2010.02630
Autor:
Kuzmin, Roman, Grabon, Nicholas, Mehta, Nitish, Burshtein, Amir, Goldstein, Moshe, Houzet, Manuel, Glazman, Leonid I., Manucharyan, Vladimir E.
Publikováno v:
Phys. Rev. Lett. 126, 197701 (2021)
Spontaneous decay of a single photon is a notoriously inefficient process in nature irrespective of the frequency range. We report that a quantum phase-slip fluctuation in high-impedance superconducting waveguides can split a single incident microwav
Externí odkaz:
http://arxiv.org/abs/2010.02099
Autor:
Pankratova, Natalia, Lee, Hanho, Kuzmin, Roman, Vavilov, Maxim, Wickramasinghe, Kaushini, Mayer, William, Yuan, Joseph, Shabani, Javad, Manucharyan, Vladimir E.
Publikováno v:
Phys. Rev. X 10, 031051 (2020)
Establishment of phase-coherence and a non-dissipative (super)current between two weakly coupled superconductors, known as the Josephson effect, plays a foundational role in basic physics and applications to metrology, precision sensing, high-speed d
Externí odkaz:
http://arxiv.org/abs/1812.06017