Only recently has nanotechnology made it possible to reach the scale required to test the theoretical model known as the Tomonaga-Luttinger theory. Now, a team of researchers has succeeded in conducting experiments with the smallest channel yet.
In a paper appearing this week in the Journal of Applied Physics, a team of researchers at Georgia Tech Research Institute and Honeywell International have demonstrated a new device that allows more electrodes to be placed on a chip -- an important step that could help increase qubit densities and bring us one step closer to a quantum computer that can simulate molecules or perform other algorithms of interest.
Amherst College professor David S. Hall and a team of collaborators have experimentally identified a pointlike monopole in a quantum field for the first time. The discovery gives scientists insight into the monopole magnet, an elementary particle that they believe exists but have not yet seen.
Thermal imaging, microscopy and ultra-trace sensing could take a quantum leap with a technique developed by researchers at ORNL.
UIC researchers created an electromechanical device—a humidity sensor—on a bacterial spore. They call it NERD, for Nano-Electro-Robotic Device. The report is online at Scientific Reports, a Nature open access journal.
Researchers at the Department of Energy’s SLAC National Accelerator Laboratory watched nanoscale semiconductor crystals expand and shrink in response to powerful pulses of laser light. This ultrafast “breathing” provides new insight about how such tiny structures change shape as they start to melt – information that can help guide researchers in tailoring their use for a range of applications.
In the quantum world, the future predicts the past. Playing a guessing game with a superconducting circuit called a qubit, a physicist at Washington University in St. Louis has discovered a way to narrow the odds of correctly guessing the state of a two-state system. By combining information about the qubit's evolution after a target time with information about its evolution up to that time, the lab was able to narrow the odds from 50-50 to 90-10.
Constructing tiny "mirrors" to trap light increases the efficiency with which photons can pick up and transmit information about electronic spin states--which is essential for scaling up quantum memories for functional quantum computing systems and networks.
University of Chicago scientists have experimentally observed for the first time a phenomenon in ultracold, three-atom molecules predicted by Russian theoretical physicsist Vitaly Efimov in 1970.
Berkeley Lab’s quantum dots have not only found their way into tablets, computer screens, and TVs, they are also used in biological and medical imaging tools, and now Paul Alivisatos’ lab is exploring them for solar cell as well as brain imaging applications.
A team of researchers has taken a major step forward in effectively enhancing the fluorescent light emission of diamond nitrogen vacancy centers – a key step to using the atom-sized defects in future quantum computers. The technique, described in the journal Applied Physics Letters hinges on the very precise positioning of NV centers within a structure called a photonic cavity that can boost the light signal from the defect.
Berkeley Lab researchers used an electric field to reverse the magnetization direction in a multiferroic spintronic device at room temperature, a demonstration that points a new way towards spintronics and smaller, faster and cheaper methods of storing and processing data.
Researchers from the London Centre for Nanotechnology have made new compact, high-value resistors for nanoscale quantum circuits. The resistors could speed the development of quantum devices for computing and fundamental physics research.
When atoms smash inside Brookhaven Lab's Relativistic Heavy Ion Collider (RHIC), they melt and form a friction-free “perfect” liquid. What would happen if you stirred this melted matter inside a teacup?
A new theory of quantum mechanics was developed by Bill Poirier, a Texas Tech University chemical physicist. The theory discusses parallel worlds' existence and the quantum effects observed in nature.
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