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Schrödinger's cat lives and dies in two boxes at once

Physicists create a double cat state in two entangled microwave cavities

Jailed Iranian physicist freed temporarily after cancer treatment

Omid Kokabee on medical parole after five years in prison

Coherent terahertz radiation created in laser plasmas

New technique could lead to intense tabletop terahertz sources

Did solar superflares spark life on Earth?

Huge storms on the Sun could have disrupted our planet's magnetic shield

Protons swim with ease through shark jelly

Discovery could help to explain how some fish detect tiny electric fields

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Comparison of drive technologies in beamline positioning

Minimum incremental motion and holding stability in beamline positioning – stepper versus servo. A white paper from Aerotech

IOP Publishing Impact Factor growth


The 2014 Impact Factors, published by Thomson Reuters, once again show significant growth for journals published by IOP Publishing.

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The optimization of medical accelerators is the goal of a new network within the FP7 Marie Curie Initial Training Network scheme. Watch this video to learn more about the early-stage researcher opportunities available.

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Art McDonald explains why neutrinos continue to amaze physicists

Podcast First detected 60 years ago, neutrinos provide a window to physics beyond the Standard Model


What is a qubit?

Video Andrea Morello provides a brief introduction to quantum bits



Zombie physics

Stephen Ornes reports how two students modelled brain-eating monsters to spice up their class project



Meet the topaholic

Robert P Crease visits a physicist with an unusual passion


Tetraquarks, pentaquarks and subatomic molecules

MIT's Mike Williams explains how four or more quarks could join together to form exotic particles or even subatomic molecules



Cloudships in our future

This lively book about geoengineering delves deeply into the science and history of fighting climate change with technology, finds Ian Randall


Riffing on the universe

Jazz musician and theoretical physicist Stephon Alexander brings a fresh perspective to links between science and music, writes Trevor Cox

Innovation & industry

Focus issue

Physics World Focus on Nuclear energy

Free to read: Building the future of fission and fusion

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