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quantum gravity

Does space-time remember? The search for gravitational memory

Space

Does space-time remember? The search for gravitational memory

Detecting the permanent imprints left by colliding black holes would reveal a universe saturated with infinite symmetries – and narrow the possibilities for a theory of quantum gravity

Features

Newton’s first law says that objects move at constant speeds until a force affects them

Physics

Newton’s first law appears to break down in the quantum realm

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Five of the biggest unanswered questions about the proton

Physics

Five of the biggest unanswered questions about the proton

Features

Physics

Quantum randomness of empty space can be controlled with a laser

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Technology

Record-breaking number of qubits entangled in a quantum computer

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Technology

Quantum twist on common computer algorithm promises useful speed boost

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Physics

Quantum lidar could help driverless vehicles spot bright objects

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We must address a key obstacle to our new age of space exploration

Space

We must address a key obstacle to our new age of space exploration

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Quantum superposition or quantum entanglement concept illustration. Superposition is the ability of a quantum system to be in multiple states at the same time until it is measured. Quantum entanglement is a physical phenomenon that occurs when pairs or groups of particles are generated or interact in ways such that the quantum state of each particle cannot be described independently.

Physics

Rethinking reality: Is the entire universe a single quantum object?

Features

Technology

Which quantum computer is the most powerful ever? It's complicated

IonQ has become the latest company to claim its quantum computer is more powerful than any other computer in existence - despite not having built it yet. But how exactly do you benchmark a quantum computer?

Analysis

Physics

The massive problem of trying to fully explain what mass actually is

Comment

Technology

Microsoft says its weird new particle could improve quantum computers

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Technology

Quantum computers could slash the energy use of cryptocurrencies

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Technology

IBM quantum computer beat a supercomputer in a head-to-head test

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