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Quantum chip holds multiple photons at once, opening path to scalable memory
المصدر: Phys.org - latest science and technology news stories · نُشر

For highly fragile quantum information systems, the ability to store quantum information is vital—but also challenging. Quantum information is transported in particles of light called photons, which often must be temporarily paused (or "stored") while other, slower quantum operat
For highly fragile quantum information systems, the ability to store quantum information is vital—but also challenging. Quantum information is transported in particles of light called photons, which often must be temporarily paused (or "stored") while other, slower quantum operations catch up. This storage must be performed on microchips as small as 1 centimeter (0.4 inches)—a distance covered by light in a few trillionths of a second.
Storing photons for a microsecond would represent a massive leap forward for the capabilities of quantum chips.
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Light-responsive inks could make tattoos visible on demand, but safety remains unproven
A team of engineers has designed a new line of multicolored tattoo inks that switch on and off with different kinds of light. Described in a study published in Matter & Light, the technology could one day help people hide their tattoos when they have an important business meeting
Phys.org - latest science and technology news stories ·

Light reads electron spins inside porous crystals, opening path to quantum chemical sensors
University of Glasgow researchers are part of an international collaboration that could lead to a new generation of quantum sensors. The team, which included researchers from the University of Tokyo, University of Glasgow, University of Sheffield and Kobe University, has for the
Phys.org - latest science and technology news stories ·

Ultrafast core-level spectroscopy reveals elusive precursors of exciton condensation in quantum materials
Many fascinating phases in quantum materials emerge when electrons, atoms and other microscopic components begin to act collectively. But these phases do not necessarily appear out of nowhere when a material crosses a transition temperature. Before long-range order develops, micr
Phys.org - latest science and technology news stories ·
A quantum prediction from 1931 just came to life
Nearly a century after physicist Hans Bethe predicted them, scientists have created and directly observed unusual quantum states known as “Bethe strings” in an ultracold gas. By cooling cesium atoms to near absolute zero and trapping them in thousands of tiny one-dimensional tube
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Scientists just made a superconductor stronger using “empty space”
Researchers have demonstrated that quantum fluctuations in supposedly empty space can strengthen superconductivity, raising the transition temperature of an ultrathin material by as much as 5.4%. The discovery opens the possibility of using specially engineered vacuum environment
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