Quantum Physics
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Quantum Physics
Future quantum computing could exploit old technology
Silicon transistors have been modified and patched together to form logic gates that could perform calculations in future quantum computers.
By Andrew Grant -
Quantum Physics
Entanglement: Gravity’s long-distance connection
The universe may be a vast quantum computer that safely encodes spacetime in an elaborate web of entanglement.
By Andrew Grant -
Quantum Physics
Quantum choice can be counterproductive
In a puzzling paradox, delivering quantum messages becomes more difficult if the intended recipient offers the sender multiple options for the time and place of delivery.
By Andrew Grant -
Quantum Physics
Shinsei Ryu: Error-free quantum calculations
Physicist Shinsei Ryu navigates the confusing border between the quantum and everyday realms.
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Quantum Physics
New experiment verifies quantum spookiness
A new experiment provides the most robust proof that quantum mechanics doesn’t follow the rules we take for granted in everyday life.
By Andrew Grant -
Physics
Hawking proposes solution to black hole problem
Light sliding along the boundary of a black hole encodes everything that ever fell inside, suggests Stephen Hawking in a new but incomplete proposal.
By Andrew Grant -
Quantum Physics
Physicists get answers from computer that didn’t run
By exploiting the quirks of quantum mechanics, physicists consistently determined what a quantum computer would have done without actually running the computer.
By Andrew Grant -
Quantum Physics
Quantum communication takes a new twist
A three-kilometer transmission of light above the Vienna skyline demonstrates that scientists can use the twistiness of light to encode delicate quantum information.
By Andrew Grant -
Quantum Physics
Quantum dots get a second chance to shine
Quantum dots, semiconductor particles that can emit a rainbow of colors, have been put to work observing living cells, with possible benefits for medical diagnosis.
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Quantum Physics
Quantum experiment dissects wave-particle mash-up
A modified version of a landmark quantum physics experiment has shown that a single parcel of light can be a particle and a wave simultaneously.
By Andrew Grant -
Quantum Physics
Atomic clock will keep precise time for 15 billion years
The world’s most precise atomic clock will not lose or gain a second in roughly 15 billion years.
By Andrew Grant -
Quantum Physics
One photon wrangles 3,000 atoms into quantum entanglement
A single photon can trigger the creation of quantum entanglement between thousands of atoms.
By Andrew Grant