Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum computation with superconductors

Amaia Irastorza Gabilondo

Published Jan 10, 2017• 1 citation
OpenAlex

Abstract

Quantum computation using supercoducting qubits. Qubits are quantum bits used in quantum computers. Superconducting qubits are a strong option for building a quantum computer. But not just that, as they are macroscopic objects they question the limits of quantum physics.

Related papers

Superconducting quantum bits

Weiyang Liu, Dongning Zheng, Shi-Ping Zhao

Superconducting quantum bits (qubits) and circuits are the leading candidate for the implementation of solid-state quantum computation. They have also been widely used in a variety of studies of quantum physics, atomic physics, quantum optics, and quantum simulation. In this article, we will present an overview of the basic principles of the superconducting qubits, including the phase, flux, charge, and transmon (Xmon) qubits, and the progress achieved so far concerning the improvements of the device design and quantum coherence property. Experimental studies in various research fields using the superconducting qubits and circuits will be briefly reviewed.

Chinese Physics B•Feb 1, 2018•28 citations

Quantum Computers: How They Work, What They Could Do and Why They Are So Difficult to Build

Sergio Da Silva

Quantum computers are fundamentally different from the classical computers we use every day; they are not simply faster or more powerful versions of laptops or supercomputers. Classical computers process information using bits that have a definite value of either 0 or 1. Quantum computers use quantum bits, or qubits, which can be built from physical systems such as photons, trapped ions, neutral atoms, electron spins or superconducting electrical circuits.

•Oct 17, 2026•0 citations

Quantum computing with superconducting circuits

Robert J. Schoelkopf

Quantum computation is a completely new and different paradigm for how to store and process information. It offers the possibility of exponential computational advantage for certain types of hard problems, but the hardware for implementing quantum algorithms is still at an early stage. The basic idea of quantum computing is to replace the ordinary binary bits of conventional computing with their quantum equivalent, or qubit. A qubit can be any quantum system whose states can be prepared and controlled, provided that we can then fabricate them in large quantities and then couple them to one another in prescribed ways. While there are several candidate technologies for building a quantum computer, one of the most promising is superconducting quantum circuits, operated at cryogenic temperatures approaching 0.01 K.

IEEE International Interconnect Technology Conference (IITC)•May 1, 2016•2 citations

The Road to Quantum Computing

Hans Mooij

To build a quantum computer, one needs quantum bits (qubits) that can be fabricated in large numbers and that can be coupled to each other to create entangled quantum states. Superconducting qubits are attractive candidates. In his Perspective, [Mooij][1] highlights the demonstration of two coupled superconducting qubits by [ McDermott et al .][2] The state of both qubits could be determined after performing quantum operations by means of microwave pulses. Quantum oscillations between the excited states of one or the other qubit were observed with this simultaneous state measurement. The approach can, in principle, be used to build a large quantum computer. [1]: http://www.sciencemag.org/cgi/content/full/307/5713/1210 [2]: http://www.sciencemag.org/cgi/content/short/307/5713/1299

Science•Feb 24, 2005•29 citations

On quantum computing with macroscopic Josephson qubits

Jie Han, Pieter P. Jonker

The achievements of quantum computation theory, e.g. Shor's factoring algorithm, motivate efforts to realize quantum computers. Among systems proposed for quantum computing, macroscopic superconducting circuits of Josephson junctions appear promising for integration in electronic circuits and large-scale applications. Recently, a superconducting tunnel junction circuit was designed and a sufficiently high quality factor of quantum coherence has been obtained. This indicates that decoherence need not be among the obstacles in building quantum computers with macroscopic Josephson circuits. In this paper we present the setup of some elementary quantum logic with macroscopic Josephson qubits, strengthened by some simulation work, and then study the feasibility of implementing Shor's quantum factoring algorithm on them. It is shown that it would be eventually possible to build a 2-dimensional Josephson qubit array, possibly accompanied by classical computing components, capable of performing useful quantum computations.

IEEE Conference on Nanotechnology (IEEE NANO)•Jun 25, 2003•5 citations

Development of Superconducting Qubits Based on Nitride Superconductors

Hirotaka Terai, Sunmi Kim, Taro Yamashita +2 more

Superconducting qubits are one of the promising hardware candidates for quantum computing, and the operation of quantum processors equipped with more than 1000 qubits have been reported. However, to achieve a meaningful quantum computation that has an advantage over classical computation, further improvement in gate fidelity and more precise control of circuit parameters are required, and many challenges remain in realizing such hardware. In this article, we summarize the current status and challenges of superconducting qubits with a focus on the circuit fabrication process and present our research and development of superconducting qubits using nitride superconductors.

Vacuum and Surface Science•Mar 9, 2025•0 citations
Superconducting quantum bits (qubits) and circuits are the leading candidate for the implementation of solid-state quantum computation. They have also been widely used in a variety of studies of quantum physics, atomic physics, quantum optics, and quantum simulation. In this article, we will present an overview of the basic principles of the superconducting qubits, including the phase, flux, charge, and transmon (Xmon) qubits, and the progress achieved so far concerning the improvements of the device design and quantum coherence property. Experimental studies in various research fields using the superconducting qubits and circuits will be briefly reviewed.
Quantum computation is a completely new and different paradigm for how to store and process information. It offers the possibility of exponential computational advantage for certain types of hard problems, but the hardware for implementing quantum algorithms is still at an early stage. The basic idea of quantum computing is to replace the ordinary binary bits of conventional computing with their quantum equivalent, or qubit. A qubit can be any quantum system whose states can be prepared and controlled, provided that we can then fabricate them in large quantities and then couple them to one another in prescribed ways. While there are several candidate technologies for building a quantum computer, one of the most promising is superconducting quantum circuits, operated at cryogenic temperatures approaching 0.01 K.
To build a quantum computer, one needs quantum bits (qubits) that can be fabricated in large numbers and that can be coupled to each other to create entangled quantum states. Superconducting qubits are attractive candidates. In his Perspective, [Mooij][1] highlights the demonstration of two coupled superconducting qubits by [ McDermott et al .][2] The state of both qubits could be determined after performing quantum operations by means of microwave pulses. Quantum oscillations between the excited states of one or the other qubit were observed with this simultaneous state measurement. The approach can, in principle, be used to build a large quantum computer. [1]: http://www.sciencemag.org/cgi/content/full/307/5713/1210 [2]: http://www.sciencemag.org/cgi/content/short/307/5713/1299
The achievements of quantum computation theory, e.g. Shor's factoring algorithm, motivate efforts to realize quantum computers. Among systems proposed for quantum computing, macroscopic superconducting circuits of Josephson junctions appear promising for integration in electronic circuits and large-scale applications. Recently, a superconducting tunnel junction circuit was designed and a sufficiently high quality factor of quantum coherence has been obtained. This indicates that decoherence need not be among the obstacles in building quantum computers with macroscopic Josephson circuits. In this paper we present the setup of some elementary quantum logic with macroscopic Josephson qubits, strengthened by some simulation work, and then study the feasibility of implementing Shor's quantum factoring algorithm on them. It is shown that it would be eventually possible to build a 2-dimensional Josephson qubit array, possibly accompanied by classical computing components, capable of performing useful quantum computations.
Superconducting qubits are one of the promising hardware candidates for quantum computing, and the operation of quantum processors equipped with more than 1000 qubits have been reported. However, to achieve a meaningful quantum computation that has an advantage over classical computation, further improvement in gate fidelity and more precise control of circuit parameters are required, and many challenges remain in realizing such hardware. In this article, we summarize the current status and challenges of superconducting qubits with a focus on the circuit fabrication process and present our research and development of superconducting qubits using nitride superconductors.