Quantum physics: Simulating fundamental interactions with ultracold atoms
Physicists succeeded in precisely engineering key ingredients to simulate a specific lattice gauge theory using ultracold atoms in optical lattices.
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Scientists create fully electronic 2-dimensional spin transistors
Physicists have constructed a two-dimensional spin transistor, in which spin currents were generated by an electric current through graphene. A monolayer of a transition metal dichalcogenide (TMD) was placed on top of graphene to induce charge-to-spin conversion in the graphene.
Read moreNovel mechanism of electron scattering in graphene-like 2D materials
Suggesting an unconventional way to manipulate the properties of 2D materials in the presence of a Bose-Einstein condensate, and an alternative strategy to design high-temperature superconductors.
Read moreNew method for detecting quantum states of electrons
Researchers have devised a new method — called image charge detection — to detect electrons' transitions to quantum states. Electrons can serve as quantum bits, the smallest unit of quantum information; these bits are foundational to larger computational systems. Quantum computers may be used to understand the mechanism of superconductivity, cryptography, artificial intelligence, among other applications.
Read moreChemists uncover a mechanism behind doping organic semiconductors
Semiconductors — and our mastery of them — have enabled us to develop the technology that underpins our modern society. These devices are responsible for a wide range of electronics, including circuit boards, computer chips and sensors.
Read moreLight and sound in silicon chips: The slower the better
Acoustics is a missing dimension in silicon chips because acoustics can complete specific tasks that are difficult to do with electronics and optics alone. For the first time researchers have added this dimension to the standard silicon photonics platform. The concept combines the communication and bandwidth offered by light with the selective processing of sound waves.
Read moreResearch advances noise cancelling for quantum computers
The characterization of complex noise in quantum computers is a critical step toward making the systems more precise.
Read moreParamagnetic spins take electrons for a ride, produce electricity from heat
Local thermal perturbations of spins in a solid can convert heat to energy even in a paramagnetic material — where spins weren't thought to correlate long enough to do so. This effect, which the researchers call 'paramagnon drag thermopower,' converts a temperature difference into an electrical voltage.
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