Quantum Physics
A maverick physicist is building a case for scrapping quantum gravity
To merge quantum physics and general relativity, physicists aim to quantize gravity. But what if gravity isn’t quantum at all?
Quantum Physics
More Stories in Quantum Physics
- 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.
- Chemistry
One photon is all it takes to kick off photosynthesis
A single particle of light is the spark that begins the process of turning light to chemical energy in photosynthetic bacteria, a new study confirms.
- Quantum Physics
Quantum computers braided ‘anyons,’ long-sought quasiparticles with memory
Particle-like quantum states called non-abelian anyons remember being swapped and could be useful for protecting information in quantum computers.
- Quantum Physics
A 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.
- Quantum Physics
Google’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.
- Physics
Physicists 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.
- Quantum Physics
This 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.
- Quantum Physics
Quantum 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.
- Quantum Physics
Aliens could send quantum messages to Earth, calculations suggest
Scientists are developing quantum communications networks on Earth. Aliens, if they exist, could be going further.
