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Quantum Simulator Reveals New State of Matter Possible with Topological Spin Liquids

By Resonance Science Foundation biophysicist William Brown

Quantum spin liquids are exotic phases of matter that offer potential applications in robust quantum information processing with topological qubits. Quantum spin liquids are a phase of matter that feature long-range quantum entanglement involving the magnetic dipoles, or spin, of electrons. Unlike in conventional magnets where the magnetic dipoles of electrons all align and freeze into place, electrons in this new exotic phase are constantly changing and fluctuating like a liquid— leading to one of the most entangled states of matter ever conceived. 

Until recent investigations it was unknown if such a highly quantum correlated magnetic state could be realized in an actual physical system. Now, using a 219-atom programmable quantum simulator a team of Harvard researchers have shown that quantum matter and protected quantum information processing are possible with topological spin liquids. Their findings...

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Geometrical understanding of entropy!

Image: Ari Weinkle for Quanta Magazine

By physicist Dr. Ines Urdaneta and biophycisist William Brown, research scientists at Resonance Science Foundation

In a former RSF article by biophysicist William Brown and astrophysicist Dr. Amira Val Baker, entitled “The morphogenetic field is real and these scientists show how to use it to understand Nature”, they address the work from Chris Jeynes and Michael Parker, published in Nature 2019, which concludes that there seems to be a field of information-entropy responsible for shaping the micro (DNA strands) up to the cosmological scale (spiral galaxies like the Spira Mirabilis, a double logarithmic spiral). This field of information would give a theoretical support to what biologist Dr. Rupert Sheldrake would call, the morphogenic field!  

In the case of the galaxies, Jeynes’ and Parker’s calculations show that the postulation of dark matter (which has not been detected yet) is superfluous, since the entropic...

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Metamaterial Device Controls Transmission and Reflection of Acoustic Waves

Article by Ken Kingery, Duke University

Metamaterials researchers at Duke University have demonstrated the design and construction of a thin material that can control the redirection and reflection of sound waves with almost perfect efficiency.

While many theoretical approaches to engineer such a device have been proposed, they have struggled to simultaneously control both the transmission and reflection of sound in exactly the desired manner, and none have been experimentally demonstrated.

The new design is the first to demonstrate complete, near-perfect control of sound waves and is quickly and easily fabricated using 3-D printers. The results appear online April 9 in Nature Communications.

"Controlling the transmission and reflection of sound waves this way was a theoretical concept that did not have a path to implementation—nobody knew how to design a practical structure using these ideas," said Steve Cummer, professor of electrical and computer...

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