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Quantum science & technology: Highlights of 2021

The conundrum at the heart of quantum physics – and how philosophers of science can help

While the technological applications of quantum mechanics are bright, its meaning remains opaque. Thankfully, as Robert P Crease explains, philosophers of science are working on it

Why we need to consider the ethical implications of quantum technologies

Mauritz Kop assesses the ethical principles we must all adopt so that the application of quantum technologies is equitable and safe

Research headlines

Quantum sensor could help detect dementia

Scientists use new device to track brain waves with unprecedented time resolution

Photo of Wei Li standing in front of a blackboard

Machine learning aids studies of quantum magnets

“Library of spin models” will help experimentalists interpret data in the search for quantum spin liquids, say researchers

Quantum computer shows that time crystals are phases of matter

Result establishes near-term quantum computers as testbeds for exotic physics out of equilibrium

New technique puts 3D quantum gases under the microscope

Matter-wave optics method allows high-precision imaging, opening pathways to exploring novel physics

Photo of the reconfigurable photonic quantum processor in a rack-mountable case with optical fibres coming out of it

Universal photonic quantum processor sets new size record

Single photons passing through the 12-mode reconfigurable processor show quantum interference

Photo of the Maryland team's trapped-ion quantum computer on an optical bench in laboratory

Physicists achieve fault-tolerant control of an error-corrected qubit

Demonstration of fault-tolerant preparation, rotation and measurement of a logical qubit is a key step towards quantum error correction

Quantum newsletter

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Quantum Week lectures

For Quantum Week 2021 we held a series of free-to-attend scientific presentations in the field of quantum science and technology. Lectures are on a range of topics including quantum processors, the ethics of quantum computing and computational advantage, and they are all available now to watch on demand. Find out more below

IOP Publishing, Bluefors, Pacer (Solid State Supplies)

Quantum computational advantage and beyond

Our first Quantum Week webinar, held on 14 June 2021, explores quantum computational advantage and future applications. Read more…

Watch now

IOP Publishing, Hiden Analytical

Tales of a not-quite-probability distribution

In this Quantum Week webinar, held on 15 June 2021, we explore quasiprobability distributions. Read more…

Watch now

IOP Publishing, Vescent, ColdQuanta, NKT Photonics, QDevil

Building quantum processors and networks atom by atom

Watch this Quantum Week webinar, held on 15 June 2021, to gain insights into one of the most promising quantum architectures. Read more…

Watch now

IOP Publishing, Hiden Analytical

Nitride quantum light sources

This Quantum Week webinar, held on 16 June 2021, explores nitride quantum light sources. Read more…

Watch now

IOP Publishing

A roadmap for the quantum internet

In our penultimate Quantum Week webinar, held on 17 June 2021, we explore the quantum internet. Read more…

Watch now

IOP Publishing, Oxford Instruments

A quantum future of computing

Our final Quantum Week webinar, held on 18 June 2021, explores a range of quantum computing topics, including the simulation of quantum systems for practical applications. Read more…

Watch now

Podcasts

Meet the winners of the Physics World 2021 Breakthrough of the Year award

Cutting through the quantum hype, why the Stark effect should be renamed

Quantum start-up targets single photons, perovskite pioneers bag Rank Prize

Explore more in quantum science and technology

Artist's drawing of an atomic nucleus with an electron orbiting it

Quantum 2.0: the cusp of a technology revolution

Tech developers and investors are increasingly attracted to quantum science

How the Netherlands is forging ahead in quantum technologies

Freeke Heijman from Quantum Delta NL on the opportunities and challenges of quantum technologies

Quantum
News

**Quantum entanglement of two macroscopic objects is the Physics World 2021 Breakthrough of the Year**

This year’s award is shared by two independent teams

Honeywell Quantinuum quantum computer ion trap inside chamber

Quantum
News

Honeywell Quantum Solutions and Cambridge Quantum Computing join forces to form Quantinuum

Quantum hardware and software businesses merge to create integrated quantum computing company

How to prepare for a career in the emerging quantum-technology industry

Laura Hiscott talks to experts who have studied the quantum-tech jobs market about what’s on offer and what skills you’ll need to forge a successful career in this area

National Quantum Technologies Showcase in London

Towards quantum 2.0 technology: where the best opportunities for business lie

James McKenzie is excited about the prospects of firms developing technology based on seemingly esoteric fundamental quantum phenomena

Innovation, investment and collaboration in the quantum sector

Oxford Quantum Circuits chief executive llana Wisby on UK investments and innovation in quantum technology, and the impact it could have

Ask me anything: Farai Mazhandu – ‘I find it fulfilling to support and inspire others, and to make seemingly complicated subjects exciting’

Farai Mazhandu is chief executive and co-founder of Bayete Quantum Technologies, which seeks to use quantum tech to solve problems for people in Africa

Sensing gravity, the quantum way

Michael Allen explains the technology that goes into building a quantum gravity sensor, and its multitude of uses in research and industry

Securing the key to our quantum future

KETS Quantum Security chief executive Chris Erven on integrating quantum-based systems into existing communications data and infrastructures

US-China quantum rivalry creates harmful barriers to progress

Yangyang Cheng examines a historical precedent for the technological competition between the US and China in quantum physics

Setting the scene for a quantum marketplace: where quantum business is up to and how it might unfold

Philip Ball investigates the successes and pitfalls of commercializing quantum information technology

What you need to know before investing in quantum technology

Hamish Johnston reviews Quantum Computing: How It Works and Why It Could Change the World by Amit Katwala, WIRED

Cover of the December 2021 special issue of Physics World on quantum technology.

Quantum
Blog

Quantum 2.0 technology: the revolution starts in the December 2021 edition of Physics World

Explore the commercialization of quantum 2.0 in the new special issue of your favourite magazine

Quantum
Interview
SPONSORED

Synthetic diamond: material innovations open new frontiers in quantum metrology

The latest addition to Element Six’s DNV Series of synthetic diamond offers increased design flexibility to scientists and engineers working on next-generation quantum sensing sy...