: Physics Articles
Editorial: Wouldn't you like to know?A wealth of information is available online, in useful encyclopaedic form. But how much of it is to be trusted? Nature Physics, vol. 4 #7, pp505-505 |
News and Views: Optomechanics: Push towards the quantum limitOptomechanical set-ups use radiation pressure to manipulate macroscopic mechanical objects. Two experiments transfer this concept to the fields of superconducting microwave circuits and cold-atom physics. Nature Physics, vol. 4 #7, pp513-514 |
News and Views: Attoscience: An attosecond stopwatchThe motion of electrons inside, around and between atoms can be captured with attosecond time resolution. A technique has now been demonstrated that can reveal electron dynamics even without attosecond light flashes. Nature Physics, vol. 4 #7, pp515-516 |
News and Views: Quantum dots: Time to get the nukes outThe ability to electrically control spin dynamics in quantum dots makes them one of the most promising platforms for solid-state quantum-information processing. Minimizing the influence of the nuclear spin environment is an important step towards realizing such promise. Nature Physics, vol. 4 #7, pp516-518 |
Letter: Process tomography of quantum memory in a Josephson-phase qubit coupled to a two-level stateDefects in Josephson junctions are considered a nuisance when it comes to using superconducting circuits as building blocks for a quantum-information processor. But if the interaction between the circuit and defects is accurately controlled—as has been demonstrated now—the imperfections might be useful, serving as memory elements. Nature Physics, vol. 4 #7, pp523-526 |
Letter: In situ doping control of the surface of high-temperature superconductorsIn copper-oxide superconductors, charge carriers must be added to the insulating ‘parent’ compound before superconductivity appears. Exactly how the dopants affect the crystalline surface and evolving Fermi surface is now clear. Nature Physics, vol. 4 #7, pp527-531 |
Letter: Dirac charge dynamics in graphene by infrared spectroscopyInfrared spectra of graphene deposited on a silicon oxide substrate suggest that many-body effects have a more significant role in determining its electronic behaviour than in free-standing graphene Nature Physics, vol. 4 #7, pp532-535 |
Letter: Singlet–triplet physics and shell filling in carbon nanotube double quantum dotsCarbon nanotube double quantum dots, whose shell-like electronic structure is reminiscent of that of a simple molecule, provide a useful system to study the interaction of just a few electrons at a time. Nature Physics, vol. 4 #7, pp536-539 |
Letter: Spin blockade and lifetime-enhanced transport in a few-electron Si/SiGe double quantum dotThe observation of spin blockade and lifetime-enhanced transport effects in Si/SiGe double quantum dots represents a promising step in the development of silicon-based quantum devices. Nature Physics, vol. 4 #7, pp540-544 |
Letter: Coherent control of attosecond emission from aligned moleculesAccurate measurement of the phase of the high harmonics emitted from aligned CO2 molecules in a strong laser field represent an important step in the generation of shaped attosecond pulses and the coherent control of matter. Nature Physics, vol. 4 #7, pp545-549 |
Letter: Unexpected drop of dynamical heterogeneities in colloidal suspensions approaching the jamming transitionIn dense colloidal suspensions, the spatial and temporal fluctuations in the dynamics of the constituent particles are closely related. But very close to the jamming transition—where the suspension becomes rigid—they are found to follow different trends. Nature Physics, vol. 4 #7, pp550-554 |