Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Silveri, Matti"'
Autor:
Tuohino, Sasu, Vadimov, Vasilii, Teixeira, Wallace S., Malmelin, Tommi, Silveri, Matti, Möttönen, Mikko
We consider a superconducting half-wavelength resonator that is grounded at its both ends and contains a single Josephson junction. Previously this circuit was considered as a unimon qubit in the single-mode approximation where dc-phase-biasing the j
Externí odkaz:
http://arxiv.org/abs/2309.09732
Autor:
Viitanen, Arto, Mörstedt, Timm, Teixeira, Wallace S., Tiiri, Maaria, Räbinä, Jukka, Silveri, Matti, Möttönen, Mikko
Publikováno v:
Phys. Rev. Research 6, 023262 (2024)
We experimentally demonstrate a recently proposed single-junction quantum-circuit refrigerator (QCR) as an in-situ-tunable low-temperature environment for a superconducting 4.7-GHz resonator. With the help of a transmon qubit, we measure the populati
Externí odkaz:
http://arxiv.org/abs/2308.00397
The confluence of unitary dynamics and non-unitary measurements gives rise to intriguing and relevant phenomena, generally referred to as measurement-induced phase transitions. These transitions have been observed in quantum systems composed of trapp
Externí odkaz:
http://arxiv.org/abs/2302.02934
Transmon arrays are one of the most promising platforms for quantum information science. Despite being often considered simply as qubits, transmons are inherently quantum mechanical multilevel systems. Being experimentally controllable with high fide
Externí odkaz:
http://arxiv.org/abs/2301.07025
Autor:
Babu, Aravind Plathanam, Orell, Tuure, Vadimov, Vasilii, Teixeira, Wallace, Möttönen, Mikko, Silveri, Matti
Publikováno v:
Phys. Rev. Research 5, 043161(2023)
The known quantum error-correcting codes are typically built on approximative open-quantum-system models such as Born--Markov master equations. However, it is an open question how such codes perform in actual physical systems that, to some extent, ne
Externí odkaz:
http://arxiv.org/abs/2212.07718
Dissipation in open systems enriches the possible symmetries of the Hamiltonians beyond the Hermitian framework allowing the possibility of novel non-Hermitian topological phases, which exhibit long-living end states that are protected against disord
Externí odkaz:
http://arxiv.org/abs/2210.02985
Arrays of transmons have proven to be a viable medium for quantum information science and quantum simulations. Despite their widespread popularity as qubit arrays, there remains yet untapped potential beyond the two-level approximation or, equivalent
Externí odkaz:
http://arxiv.org/abs/2205.05958
Autor:
Orell, Tuure, Zanner, Maximilian, Juan, Mathieu L., Sharafiev, Aleksei, Albert, Romain, Oleschko, Stefan, Kirchmair, Gerhard, Silveri, Matti
Multiple emitters coherently interacting with an electromagnetic mode give rise to collective effects such as correlated decay and coherent exchange interaction, depending on the separation of the emitters. By diagonalizing the effective non-Hermitia
Externí odkaz:
http://arxiv.org/abs/2112.08134
Autor:
Mörstedt, Timm Fabian, Viitanen, Arto, Vadimov, Vasilii, Sevriuk, Vasilii, Partanen, Matti, Hyyppä, Eric, Catelani, Gianluigi, Silveri, Matti, Tan, Kuan Yen, Möttönen, Mikko
Publikováno v:
Annalen der Physik 534, 2100543 (2022)
We review the recent progress in direct active cooling of the quantum-electric degrees freedom in engineered circuits, or quantum-circuit refrigeration. In 2017, the invention of a quantum-circuit refrigerator (QCR) based on photon-assisted tunneling
Externí odkaz:
http://arxiv.org/abs/2111.11234
Publikováno v:
AVS Quantum Sci. 3, 042001 (2021)
Previous studies of photon-assisted tunneling through normal-metal-insulator-superconductor junctions have exhibited potential for providing a convenient tool to control the dissipation of quantum-electric circuits in-situ. However, the current liter
Externí odkaz:
http://arxiv.org/abs/2107.04278