University of Toronto Engineering Ph.D. student Amita Gnanapandithan used both practical experiments and computer modeling to demonstrate the existence of “hidden” side channels in devices that produce photons used in…
Category: Quantum Physics
A quantum superhighway for ultrafast NOON states
A NOON state is a superposed quantum state where N particles are in one state “at the same time” and in another “at the same time.” Here, the particles are…
Study proposes new mechanism underpinning intrinsic strange metal behavior
Theoretical phase diagram as a function of temperature and hybridization strength, which serve as our tuning parameters. The color indicates how correlations decay over time. In the blue regions, the…
Scientists develop method to speed up quantum measurements using space-time trade-off
A quantum circuit showing a fast measurement outcome for two qubits is the same as a slow measurement outcome for one qubit. Credit: Chris Corlett In an attempt to speed…
Quantum entanglement reveals strange metals’ unique electron behavior at critical point
Qimiao Si is the Harry C. and Olga K. Wiess Professor of Physics and Astronomy at Rice. Credit: Jeff Fitlow/Rice University. Scientists have long sought to unravel the mysteries of…
Liquid-crystal platform overcomes optical losses in photonic circuits
A liquid-crystal-based platform acts as an optical processor in free space, allowing for the simultaneous manipulation of hundreds of optical modes within a compact two-dimensional setup. Credit: M. G. Ammendola…
Theoretical physicists completely determine the statistics of quantum entanglement
When two observers measure an entangled state, the frequencies of their observed results manifest the strength of quantum theory. Extreme values governing these statistics have now been successfully identified. Credit:…
Precision measurement of boron-like tin ion’s g factor
Visualization of the QED interactions in boron-like tin ions. Credit: MPIK Highly charged heavy ions form a very suitable experimental field for investigating quantum electrodynamics (QED), the best-tested theory in…
How an unconventional type of quantum computer opens a new door to the world of elementary particles
A new type of quantum computer studies the dance of elementary particles. Credit: Harald Ritsch The standard model of particle physics is our best theory of the elementary particles and…
