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Scientists in search of quantum breakthroughs subject crystalline materials to sound waves

Scientists in search of quantum breakthroughs subject crystalline materials to sound waves

Science
Sept. 24 (UPI) -- To develop the next generation of quantum technologies, scientists need to find materials with unique optical and electrical properties. Often, when materials are put under stress and strain, they reveal unusual physical properties. But measuring the nanoscale effects of strain isn't easy. To aid the search for quantum properties, scientists at the Argonne National Laboratory set out to precisely measure the effects of sound waves on silicon carbide crystal. Researchers used X-rays to observe the atomic changes triggered by the strain of sound waves passing through the material. The X-rays helped scientists study the behavior of defects, holes where atoms should be, buried deep inside the crystalline material. Defects in crystalline materials often feature unique quantu...
Scientists send light through 2D crystal layer in quantum computing leap

Scientists send light through 2D crystal layer in quantum computing leap

Science
July 23 (UPI) -- Physicists in Europe have managed send light through a two-dimensional crystal layer, a breakthrough that provides a semiconducting platform for quantum computing. In modern computers -- in laptops or smartphones -- the storage and movement of information is carried out by flowing electrons. The flow of electrons is controlled by small semiconductor devices called transistors. If electrons were replaced by photons, the movement of information inside a computer could happen at the speed of light. This is the idea behind quantum computing. Scientists have repeatedly demonstrated the potential of quantum technology -- teleporting and storing bits of information using light -- but only at small scales. No quantum computer yet exists. One of the problems is that researchers ...
Fastest manmade spinning object to aid quantum mechanics science

Fastest manmade spinning object to aid quantum mechanics science

Science
July 20 (UPI) -- The creators of the world's fastest manmade rotor believe their invention will boost the study of quantum mechanism, the branch of physic devoted to the behavior of subatomic particles. The new rotor can spin at a rate of 60 billion revolutions per minute. Most airplane turbines top out at 3,000 revolutions per minute. Scientists described their impressive new device this week in the journal Physical Review Letters. "This study has many applications, including material science," Tongcang Li, an assistant professor of physics and astronomy at Purdue University, said in a news release. "We can study the extreme conditions different materials can survive in." The rotor is composed of a tiny silica dumbbell. Scientists used a laser to levitate the dumbbell inside a vacuum. T...
Quantum computers 'one step closer'

Quantum computers 'one step closer'

Science
Quantum computing has taken a step forward with the development of a programmable quantum processor made with silicon.The team used microwave energy to align two electron particles suspended in silicon, then used them to perform a set of test calculations.By using silicon, the scientists hope that quantum computers will be more easy to control and manufacture. The research was published in the journal Nature.The old adage of Schrödinger's Cat is often used to frame a basic concept of quantum theory. We use it to explain the peculiar, but important, concept of superposition; where something can exist in multiple states at once.For Schrodinger's feline friend - the simultaneous states were dead and alive.Superposition is what makes quantum computing so potentially powerful.Standard computer