Quantum information articles from across Nature Portfolio

Quantum information is problem solving and data processing using a quantum system as the information carrier, rather than binary ‘1’s and ‘0’s used in conventional computation. Quantum information systems could be able to transmit data that is fundamentally secure and solve problems that are beyond the power of modern computers.

Featured

News & Views | 10 May 2023

Superconducting qubits cover new distances
- Marissa Giustina
Nature 617, 254-256

Latest Research and Reviews

Research
05 June 2023 | Open Access

Quantum neural networks with multi-qubit potentials
- Yue Ban
- , E. Torrontegui
- & J. Casanova
Scientific Reports 13, 9096
Research
01 June 2023 | Open Access

Feedback-based active reset of a spin qubit in silicon
- T. Kobayashi
- , T. Nakajima
- & S. Tarucha
npj Quantum Information 9, 52
Research
29 May 2023 | Open Access

Breaking universal limitations on quantum conference key agreement without quantum memory

Realizing quantum conference key agreement is challenging in experiment and unpractical in application because of limited transmission distance caused by channel loss. The authors present here a quantum conference key agreement protocol with spatial multiplexing nature and adaptive operation, which can break limitations on quantum communication over network and thus shed some light on future global quantum network.
- Chen-Long Li
- , Yao Fu
- & Zeng-Bing Chen
Communications Physics 6, 122
Reviews | 26 May 2023

Applications of single photons to quantum communication and computing

This Review overviews the application of single photons in quantum communication and quantum computation discussing specific needs and requirements and achieved milestones and outlining future improvements.
- Christophe Couteau
- , Stefanie Barz
- & Gregor Weihs
Nature Reviews Physics 5, 326-338
Reviews | 26 May 2023

Applications of single photons in quantum metrology, biology and the foundations of quantum physics

This Review overviews the application of single photons in quantum metrology, quantum biology and the foundations of quantum physics, discussing specific needs and requirements, achieved milestones and an outline for future improvements.
- Christophe Couteau
- , Stefanie Barz
- & Gregor Weihs
Nature Reviews Physics 5, 354-363
Research
26 May 2023 | Open Access

Theoretical investigation of dynamics and concurrence of entangled \({{\mathcal {P}}}{{\mathcal {T}}}\) and anti-\({{\mathcal {P}}}{{\mathcal {T}}}\) symmetric polarized photons
- Javed Akram
- & Chao Zheng
Scientific Reports 13, 8542

All Research & Reviews

News and Comment

Comments & Opinion | 24 May 2023

Towards quantum machine learning

Jungsang Kim discusses his interest in the pioneering technology.
- Michael Brooks
Nature
Comments & Opinion | 24 May 2023

Rewriting the quantum-computer blueprint

An architecture for quantum computers based on parity is attracting money from government and industry.
- Edwin Cartlidge
Nature
Comments & Opinion | 24 May 2023

Commercializing quantum computers step by step

Alongside developing a quantum computer, one group of scientists is selling its components to other researchers.
- Edwin Cartlidge
Nature
Comments & Opinion | 24 May 2023

Quantum computers: what are they good for?

For now, absolutely nothing. But researchers and firms are optimistic about the applications.
- Michael Brooks
Nature 617, S1-S3
News & Views | 10 May 2023

Superconducting qubits cover new distances

Superconducting quantum bits, a promising platform for future quantum computers, have been entangled over a separation of 30 metres, with a performance that enabled the demonstration of a milestone in quantum physics.
- Marissa Giustina
Nature 617, 254-256
News | 09 May 2023

Physicists create long-sought topological quantum states

Exotic particles called nonabelions could fix quantum computers’ error problem.
- Davide Castelvecchi
Nature 617, 445-446