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   Articles with "superconducting qubits" as a keyword



Chemical Profiles of the Oxides on Tantalum in State of the Art Superconducting Circuits.

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recommendations! Published in 2023 at "Advanced science"

DOI: 10.1002/advs.202300921

Abstract: Over the past decades, superconducting qubits have emerged as one of the leading hardware platforms for realizing a quantum processor. Consequently, researchers have made significant effort to understand the loss channels that limit the coherence… read more here.

Keywords: oxides tantalum; state art; chemical profiles; superconducting qubits ... See more keywords
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Controllable and accelerated generation of entangled states between two superconducting qubits in circuit QED

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recommendations! Published in 2021 at "Optics and Laser Technology"

DOI: 10.1016/j.optlastec.2020.106699

Abstract: Abstract Optimal generation of entangled states is of significance to quantum information processing. Here an efficient scheme is proposed for performing controllable and accelerated generation of entangled states between two superconducting qubits. Two three-level artificial… read more here.

Keywords: superconducting qubits; generation entangled; controllable accelerated; entangled states ... See more keywords

Spin environment of a superconducting qubit in high magnetic fields

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recommendations! Published in 2025 at "Nature Communications"

DOI: 10.1038/s41467-025-65528-y

Abstract: Superconducting qubits equipped with quantum non-demolition readout and active feedback can be used as information engines to probe and manipulate microscopic degrees of freedom, whether intentionally designed or naturally occurring in their environment. In the… read more here.

Keywords: environment; superconducting qubits; superconducting qubit; spin environment ... See more keywords

Probing defect densities at the edges and inside Josephson junctions of superconducting qubits

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recommendations! Published in 2022 at "npj Quantum Information"

DOI: 10.1038/s41534-022-00532-4

Abstract: Tunneling defects in disordered materials form spurious two-level systems which are a major source of decoherence for micro-fabricated quantum devices. For superconducting qubits, defects in tunnel barriers of submicrometer-sized Josephson junctions couple strongest to the… read more here.

Keywords: probing defect; defect densities; junction; superconducting qubits ... See more keywords
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Overlap junctions for high coherence superconducting qubits

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recommendations! Published in 2017 at "Applied Physics Letters"

DOI: 10.1063/1.4993937

Abstract: Fabrication of sub-micron Josephson junctions is demonstrated using standard processing techniques for high-coherence, superconducting qubits. These junctions are made in two separate lithography steps with normal-angle evaporation. Most significantly, this work demonstrates that it is… read more here.

Keywords: overlap junctions; coherence; superconducting qubits; coherence superconducting ... See more keywords

NbN-based half-flux-quantum element for integration with superconducting qubits

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recommendations! Published in 2024 at "Applied Physics Letters"

DOI: 10.1063/5.0203046

Abstract: Half-flux-quantum (HFQ) logic is a superconductor logic family comprising conventional Josephson junctions (0-JJs) and π Josephson junctions (π-JJs). The energy scale of HFQ logic can be flexibly reduced by phase shifts owing to π-JJs; thus,… read more here.

Keywords: flux quantum; superconducting qubits; nbn based; logic ... See more keywords

The preparation of a Bell entangled state using superconducting qubits via Lyapunov control

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recommendations! Published in 2025 at "Laser Physics Letters"

DOI: 10.1088/1612-202x/add4ec

Abstract: We investigate how to prepare a Bell entangled state deterministically by using two remote superconducting qubits coupled to a coplanar waveguide resonator via Lyapunov control. The results show that when spontaneous emission of the qubits… read more here.

Keywords: entangled state; superconducting qubits; control; bell entangled ... See more keywords

Experimental exploration of five-qubit quantum error correcting code with superconducting qubits

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recommendations! Published in 2021 at "National Science Review"

DOI: 10.1093/nsr/nwab011

Abstract: Quantum error correction is an essential ingredient for universal quantum computing. Despite tremendous experimental efforts in the study of quantum error correction, to date, there has been no demonstration in the realisation of universal quantum… read more here.

Keywords: code; error; superconducting qubits; error correcting ... See more keywords
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Sampling and Scrambling on a Chain of Superconducting Qubits

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recommendations! Published in 2018 at "Physical review applied"

DOI: 10.1103/physrevapplied.10.024052

Abstract: We study a circuit, the Josephson sampler, that embeds a real vector into an entangled state of n qubits, and optionally samples from it. We measure its fidelity and entanglement on the 16-qubit ibmqx5 chip.… read more here.

Keywords: chain; chain superconducting; superconducting qubits; sampling scrambling ... See more keywords

Entanglement Generation in Superconducting Qubits Using Holonomic Operations

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recommendations! Published in 2019 at "Physical Review Applied"

DOI: 10.1103/physrevapplied.11.014017

Abstract: We investigate a non-adiabatic holonomic operation that enables us to entangle two fixed-frequency superconducting transmon qubits attached to a common bus resonator. Two coherent microwave tones are applied simultaneously to the two qubits and drive… read more here.

Keywords: qubits using; generation superconducting; holonomic operations; entanglement generation ... See more keywords

Baseband Control of Superconducting Qubits with Shared Microwave Drives

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recommendations! Published in 2022 at "Physical Review Applied"

DOI: 10.1103/physrevapplied.19.054050

Abstract: Accurate control of qubits is the central requirement for building functional quantum processors. For the current superconducting quantum processor, high-fidelity control of qubits is mainly based on independently calibrated microwave pulses, which could differ from… read more here.

Keywords: qubit; microwave drives; baseband; shared microwave ... See more keywords