Scientists observe 'negative time' in quantum experiments
Scientists have long known that light can sometimes appear to exit a material before entering it—an effect dismissed as an illusion caused by how waves are distorted by matter....
Quantum Physics News
Most precise measurement of electrically neutral beauty meson lifetime achieved
The ATLAS collaboration at the Large Hadron Collider (LHC) has released a new high-precision measurement of the lifetime of the electrically neutral beauty (B0) meson—a hadron composed of a bottom antiquark and a down quark....
Scientists achieve collective quantum behavior in macroscopic oscillators
Quantum technologies are radically transforming our understanding of the universe. One emerging technology is macroscopic mechanical oscillators, devices that are vital in quartz watches, mobile phones, and lasers used in telecommunications. In the quantum realm, macroscopic oscillators could enable...
Colliding top quarks reveal hidden quantum 'magic'
Queen Mary University of London physicist Professor Chris White, along with his twin brother Professor Martin White from the University of Adelaide, have discovered a surprising connection between the Large Hadron Collider (LHC) and the future of quantum computing....
Purple diamond maser could one day amplify signals from deep space
UNSW engineers have developed and built a special maser system that boosts microwave signals—such as those from deep space—but does not need to be super-cooled....
Advancing a trustworthy quantum era: A novel approach to quantum protocol verification
Quantum computing offers the potential to solve complex problems faster than classical computers by leveraging the principles of quantum mechanics. Significant advancements have been made in areas, such as artificial intelligence, cryptography, deep learning, optimization, and solving complex...
Where's my qubit? Scientists develop technique to detect atom loss
Quiet quitting isn't just for burned out employees. Atoms carrying information inside quantum computers, known as qubits, sometimes vanish silently from their posts. This problematic phenomenon, called atom loss, corrupts data and spoils calculations....
Simple machine learning techniques can cut costs for quantum error mitigation while maintaining accuracy
Quantum computers have the potential of outperforming classical computers in some optimization and data processing tasks. However, quantum systems are also more sensitive to noise and thus prone to errors, due to the known physical challenges associated with reliably manipulating qubits, their...
Pioneering approach expands possibilities for measuring quantum geometry in solids
Understanding and reliably measuring the geometric properties of quantum states can shed new light on the intricate underpinning of various physical phenomena. The quantum geometric tensor (QGT) is a mathematical object that provides a detailed description of how quantum states change in response to...
Researchers achieve near-unity quantum efficiency in 2D photon emitters
Leveraging the principles of quantum mechanics, quantum computers can perform calculations at lightning-fast speeds, enabling them to solve complex problems faster than conventional computers. In quantum technology applications such as quantum computing, light plays a central role in encoding and...