Researchers have constructed a quantum-mechanical state in which the colors of three photons are entangled with each other. The state is a special combination, called a W state, that retains some ...

Data security on the internet is under threat: in the future, quantum computers could decode even encrypted files sent over the internet in no time. Researchers worldwide are, therefore, experimenting ...

For quantum communication to work, light sources must emit photons one at a time, not in random bunches. Several materials ...

The resolution of optical microscopy is limited by diffraction limit and can only achieve a resolution of about 200 nm. In the past two decades, a series of technologies, such as STED, SIM, PALM/STORM ...

“Carbon nanotubes are the only quantum emitters that can emit single photons at room temperature and also at wavelengths used for telecommunications,” said Yuichiro Kato of the RIKEN Center for ...

Schematic of a 4f-configuration optical setup employed to spectrally filter the pulsed laser beam to a full-width at half-maximum of 200 GHz centered at 774.82 nm wavelength. Credit: Light: Science & ...

Researchers at the University of Illinois at Urbana-Champaign have constructed a quantum-mechanical state in which the colors of three photons are entangled with each other. The state is a special ...