Multi-antenna carrier-phase differential GNSS (CDGNSS)-based pose (position and orientation) estimation aided by monocular visual measurements and a smartphone-
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IMAGE: A Rice University-led study finds a unique form of tunable and ultrastrong spin-spin interactions in orthoferrites under a strong magnetic field. The discovery has implications for quantum simulation and sensing.. view more
Credit: Illustration by Motoaki Bamba/Kyoto University
HOUSTON - (May 25, 2021) - Sometimes things are a little out of whack, and it turns out to be exactly what you need.
That was the case when orthoferrite crystals turned up at a Rice University laboratory slightly misaligned. Those crystals inadvertently became the basis of a discovery that should resonate with researchers studying spintronics-based quantum technology.
Rice physicist Junichiro Kono, alumnus Takuma Makihara and their collaborators found an orthoferrite material, in this case yttrium iron oxide, placed in a high magnetic field showed uniquely tunable, ultrastrong interactions between magnons in the crystal.
Why the U.S. Army Loves Lasers (And No, Not To Shoot At People)
Lasers could transmit sensitive data across multiple nodes at the speed of light, exponentially faster and potentially more secure than radio frequency communications.
Lasers can already incinerate drones, destroy enemy aircraft and possibly even melt incoming anti-ship missiles, but the Army Research Office is fast progressing with new research enabling lasers to transmit data at the speed of light.
While early on, it is potentially a huge breakthrough, as promising new experiments are showing that laser communications can instantly network robots, drones, sensors, weapons and platforms. The work, now being done by the University of Pennsylvania and Duke University, is based upon the science of Photonics, which an Army Research Office essay says “has the potential to transform all manners of electronic devices by storing and transmitting information in the form of light, rather than electricity.”
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New robot swarm research shows that, as magnetic interactions increase, dispersed “dumb robots” called BOBbots can gather in compact clusters to accomplish complex tasks.
Getting swarms of robots to work collectively can be challenging, unless researchers carefully choreograph their interactions like planes in formation using increasingly sophisticated components and algorithms.
But what can be reliably accomplished when the robots on hand are simple, inconsistent, and lack sophisticated programming for coordinated behavior?
Researchers sought to show that even the simplest of robots can still accomplish tasks well beyond the capabilities of one, or even a few, of them.
The goal of accomplishing these tasks with what the team dubbed “dumb robots” (essentially mobile granular particles) exceeded their expectations, and the researchers report being able to remove all sensors, communication, memory, and computation and instead accomplishing a set of tasks through leveraging