Anna Levochkina
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View article: Implementation and Readout of Maximally Entangled Two-Qubit Gates Quantum Circuits in a Superconducting Quantum Processor
Implementation and Readout of Maximally Entangled Two-Qubit Gates Quantum Circuits in a Superconducting Quantum Processor Open
Besides noticeable challenges in implementing low-error single- and two-qubit quantum gates in superconducting quantum processors, the readout technique and analysis are a key factor in determining the efficiency and performance of quantum…
View article: Towards novel tunability schemes for hybrid ferromagnetic transmon qubits
Towards novel tunability schemes for hybrid ferromagnetic transmon qubits Open
Flux tuning of qubit frequencies in superconducting quantum processors is fundamental for implementing single and multi-qubit gates in quantum algorithms. Typical architectures involve the use of DC or fast RF lines. However, these lines i…
View article: Investigating pump harmonics generation in a SNAIL-based traveling wave parametric amplifier
Investigating pump harmonics generation in a SNAIL-based traveling wave parametric amplifier Open
Traveling wave parametric amplifiers (TWPAs) are extensively employed in experiments involving weak microwave signals for their highly desirable quantum-limited and broadband characteristics. However, TWPAs’ broadband nature comes with the…
View article: Modeling flux tunability in Josephson Traveling Wave Parametric Amplifiers with an open-source frequency-domain simulator
Modeling flux tunability in Josephson Traveling Wave Parametric Amplifiers with an open-source frequency-domain simulator Open
Josephson Traveling Wave Parametric Amplifiers (JTWPAs) are integral parts of many experiments carried out in quantum technologies. Being composed of hundreds of Josephson junction-based unit cells, such devices exhibit complex nonlinear b…
View article: Mitigating Errors on Superconducting Quantum Processors Through Fuzzy Clustering
Mitigating Errors on Superconducting Quantum Processors Through Fuzzy Clustering Open
Quantum utility is severely limited in superconducting quantum hardware until now by the modest number of qubits and the relatively high level of control and readout errors, due to the intentional coupling with the external environment req…
View article: Raw experimental data: Investigating pump harmonics generation in a SNAIL-based Traveling Wave Parametric Amplifier
Raw experimental data: Investigating pump harmonics generation in a SNAIL-based Traveling Wave Parametric Amplifier Open
Raw experimental data that support the findings of the article "Investigating pump harmonics generation in a SNAIL-based Traveling Wave Parametric Amplifier" (https://arxiv.org/abs/2405.20096). A jupyter notebook is provided to reproduce t…
View article: Numerical Simulations of Josephson Traveling Wave Parametric Amplifiers (JTWPAs): Comparative Study of Open-Source Tools
Numerical Simulations of Josephson Traveling Wave Parametric Amplifiers (JTWPAs): Comparative Study of Open-Source Tools Open
Josephson Traveling Wave Parametric Amplifiers (JTWPAs) are largely exploited\nin quantum technologies for their broadband and low noise performance in the\nmicrowave regime. When one or more microwave tones are applied at the input,\nsuch…
View article: Mitigating Errors on Superconducting Quantum Processors through Fuzzy Clustering
Mitigating Errors on Superconducting Quantum Processors through Fuzzy Clustering Open
Quantum utility has been severely limited in superconducting quantum hardware until now by the modest number of qubits and the relatively high level of control and readout errors, due to the intentional coupling with the external environme…
View article: A feasible path for the use of ferromagnetic josephson junctions in quantum circuits: The ferro-transmon
A feasible path for the use of ferromagnetic josephson junctions in quantum circuits: The ferro-transmon Open
We discuss the capabilities of ferromagnetic (F) Josephson junctions (JJs) in a variety of layouts and configurations. The main goal is to demonstrate the potential of these hybrid JJs to disclose new physics and the possibility to integra…