Category: Physics
Molecular qubits can communicate at telecom frequencies
Ph.D. students Leah Weiss (left) and Grant Smith work in the lab of Professor David Awschalom. (Photo by John Zich). Credit: John Zich A team of scientists from the University…
Quantum key distribution method tested in urban infrastructure offers secure communications
Detection of time-bin superpositions with the temporal Talbot carpet. Credit: Maciej Ogrodnik, University of Warsaw In the era of instant data exchange and growing risks of cyberattacks, scientists are seeking…
Combination of quantum and classical computing supports early diagnosis of breast cancer
From imaging to diagnosis: experiment outline. Credit: Yasmin Rodrigues Sobrinho Quantum computing is still in its early stages of development, but researchers have extensively explored its potential uses. A recent…
Physicists solve mystery of loop current switching in kagome metals
Permanent nanoscale loop electrical currents in kagome metals. Credit: Kano Okada, Nagoya University Quantum metals are metals where quantum effects—behaviors that normally only matter at atomic scales—become powerful enough to…
Quantum error correction codes enable efficient scaling to hundreds of thousands of qubits
The proposed error-correction codes are scalable to hundreds of thousands of qubits and are highly efficient, serving as the foundation for practical fault-tolerant quantum computing. Credit: Institute of Science Tokyo,…
Physicists demonstrate 3,000 quantum-bit system capable of continuous operation
Neng-Chun Chiu (from left), Simon Hollerith, Luke Stewart, Mikhail Lukin, Jinen (Tim) Guo, Mohamed Abobeih, and Elias Trapp. Credit: Veasey Conway/Harvard Staff Photographer One often-repeated example illustrates the mind-boggling potential…
Researchers cut the time for a learning task from 20 million years to 15 minutes
The squeezer—an optical parametric oscillator (OPO) that uses a nonlinear crystal inside an optical cavity to manipulate the quantum fluctuations of light.—is responsible for the entanglement. Credit: Photo: Jonas Schou…
A new twist on Heisenberg’s uncertainty principle can sharpen quantum sensors
Credit: Pixabay/CC0 Public Domain For almost a century, Heisenberg’s uncertainty principle has stood as one of the defining ideas of quantum physics: a particle’s position and momentum cannot be known…
Quantum random number generator combines small size and high speed
A new chip-based quantum random number generator (QRNG) combines miniaturization with high-speed, high-quality operation. The researchers showed it can generate unpredictable random numbers at a rate of 3 Gbps. Credit:…
