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Researchers show that a single photon can transfer an excitation from a quantum dot to an ion.
The discovery of superconductivity in a manganese-based “helical” magnet opens a new path to explore the relationship between superconductivity and magnetism.
An atom interferometer embedded in an optical cavity requires less power compared to previous techniques and may work with a wider variety of atoms and molecules.
A signal in the cosmic microwave background thought to be evidence of inflation in the early Universe can be explained by interstellar dust.
An x-ray laser has imaged the three-dimensional structure of the mimivirus by combining hundreds of measurements on single virus particles.
A simple system consisting of a pair of atoms in a two-site “minicrystal” is able to reproduce the physics of a widely used model of electrons in a solid.
A new approach is able to quantify the environmental effects on an evolving organism by analyzing just a small number of surviving individuals.
Strands of DNA can be used to generate waves of chemical reactions with programmable shape and velocity.
Researchers characterize the multiple ways of entanglement that exist between different frequency bands in a down-converted frequency comb.
A new scheme for cooling a mechanical oscillator in a cavity may allow the observation of quantum effects on macroscopic objects and the realization of ultrasensitive gravitational-wave detectors.
An atom’s walk in an optical lattice is used to test a key principle of quantum physics.
In transition-metal oxides, the ability to control which atomic orbitals are occupied by electrons could be used to develop materials with new functionalities.
Imaginary magnetic fields predicted by the fundamental theory of phase transitions can be realized experimentally.
The spin on a silicon defect in diamond can be prepared in a coherent quantum state, a promising sign that it could encode information in a quantum internet.
A scheme using two pump wavelengths in the infrared and ultraviolet produces more efficient laserlike emission in air, which could benefit remote sensing applications.
An x-ray feature recently detected by different astronomy groups may be the long-awaited signature of dark matter.
A laser-driven particle accelerator, delivering a beam of electrons with a record-breaking energy of 4.2 giga-electron-volts, could lead to compact x-ray lasers or high-energy colliders.
The injection of spins into a high-mobility two-dimensional electron gas is unexpectedly efficient, suggesting that new theories may be needed to describe spin transport in such systems.
A new technique in matter-wave interferometry using laser light to fragment molecules may open the door to interference demonstrations with large bio-molecules or nanoclusters.
The seemingly erratic motion of insects in a swarm exhibits the correlated behavior of particles near the critical point of a phase transition.