Quantum Physics News

Quantum cryptography: Making hacking futile

 Quantum Physics News
 27 July 2022
The Internet is teeming with highly sensitive information. Sophisticated encryption techniques generally ensure that such content cannot be intercepted and read. But in the future high-performance quantum computers could crack these keys in a matter of seconds. It is just as well, then, that quantum...

Quantum key distribution based on high-quality quantum entanglement

 Quantum Physics News
 27 July 2022
A method known as quantum key distribution has long held the promise of communication security unattainable in conventional cryptography. An international team of scientists has now demonstrated experimentally, for the first time, an approach to quantum key distribution that is based on high-quality...

Team scripts breakthrough quantum algorithm

 Quantum Physics News
 27 July 2022
City College of New York physicist Pouyan Ghaemi and his research team are claiming significant progress in using quantum computers to study and predict how the state of a large number of interacting quantum particles evolves over time. This was done by developing a quantum algorithm that they run...

A new theory of quantum subsystems

 Quantum Physics News
 26 July 2022
When studying a complex system, scientists identify smaller pieces called subsystems that they can make sense of. By studying subsystems and the correlations between them, they reconstruct an understanding of the whole....

Physicists find signatures of highly entangled quantum matter

 Quantum Physics News
 22 July 2022
Via large-scale simulations on supercomputers, a research team from the Department of Physics, the University of Hong Kong (HKU), discovered clear evidence to characterize a highly entangled quantum matter phase—the quantum spin liquid (QSL), a phase of matter that remains disordered even at very...

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