Quantum Physics
Quantum computers could break the internet. Here’s how to save it
Today's encryption schemes will be vulnerable to future quantum computers, but new algorithms and a quantum internet could help.
Quantum Physics
More Stories in Quantum Physics
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Quantum PhysicsA sapphire Schrödinger’s cat shows that quantum effects can scale up
The atoms in a piece of sapphire oscillate in two directions at once, a mimic of the hypothetically dead-and-alive feline.
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Quantum PhysicsGoogle’s quantum computer reached an error-correcting milestone
A larger array of quantum bits outperformed a smaller one in tests performed by Google researchers, suggesting quantum computers could be scaled up.
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PhysicsPhysicists stored data in quantum holograms made of twisted light
Light that travels in corkscrew-like paths provides a way to make holograms that store large amounts of data in ultrasecure packages.
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Quantum PhysicsThis environmentally friendly quantum sensor runs on sunlight
Quantum sensors often rely on power-hungry lasers to make measurements. A new quantum magnetometer uses sunlight to measure magnetic fields instead.
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Quantum PhysicsQuantum entanglement makes quantum communication even more secure
Bell tests proved that quantum mechanics really is “spooky.” Now they’ve made quantum communication even more hacker-proof.
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Quantum PhysicsAliens could send quantum messages to Earth, calculations suggest
Scientists are developing quantum communications networks on Earth. Aliens, if they exist, could be going further.
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Quantum PhysicsQuantum physics exponentially improves some types of machine learning
It wasn’t entirely clear if quantum computers could improve machine learning in practice, but new experiments and theoretical proofs show that it can.
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Quantum PhysicsA new gravity sensor used atoms’ weird quantum behavior to peer underground
Quantum sensors promise to be more accurate and stable in the long run than other gravity probes.
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Quantum Physics‘From Data to Quanta’ defends Niels Bohr’s view of quantum mechanics
In his new book, philosopher Slobodan Perović corrects misconceptions about physicist Niels Bohr’s work.