Ultracold matter Research update Germany sends optical-clock signal over nearly 1000 km New technique is first step towards pan-European network for connecting optical clocks Read article: Germany sends optical-clock signal over nearly 1000 km
Quantum mechanics Research update Quantum interference: the movie Physicists watch as giant molecules behave like waves Read article: Quantum interference: the movie
Constants and units Research update Can GPS find variations in Planck’s constant? Satellites put limit on violation of general relativity, claim physicists Read article: Can GPS find variations in Planck’s constant?
History Opinion and reviews Physics for students, not poets Brian Clegg reviews Leon Lederman and Christopher Hill's Quantum Physics for Poets Read article: Physics for students, not poets
Ultrafast science Research update Frequency comb reaches extreme ultraviolet Device could boost study of fundamental constants Read article: Frequency comb reaches extreme ultraviolet
Ultracold matter News Our favourite pictures of 2011 From Batman under the microscope to dancing black holes Read article: Our favourite pictures of 2011
Structure and dynamics Research update Ergodic theorem passes the test Individual dye molecules go with the flow Read article: Ergodic theorem passes the test
Ultracold matter Research update Falling atoms measure the Earth’s rotation New gyroscope could also test Einstein's general relativity Read article: Falling atoms measure the Earth’s rotation
Quantum mechanics Opinion and reviews The flawed multiverse Alastair Rae reviews The Beginning of Infinity by David Deutsch Read article: The flawed multiverse
Optical physics Research update Manipulating the middle ground Nanostructures shine a new light on the optics of reflection and refraction Read article: Manipulating the middle ground