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Bristol Researchers Demonstrate Quantum Teleportation on a Silicon Chip

The core circuits of quantum teleportation, which generate and detect quantum entanglement, have been successfully integrated into a photonic chip by an international team of scientists from the universities of Bristol, Tokyo, Southampton and NTT Device Technology Laboratories.

3 Apr 2015

Behaviour of Quantum Crystals Can Help Answer Fundamental Questions

It is a situation familiar from one’s own living environment: relations between neighbours can be intense, yet also characterised by sensitivities. Complex quantum systems can be imagined in a similar way – especially when magnetism is involved.

3 Apr 2015

Escaping Limitations of Quantum Physics to Obtain Precise Measurements of Ultra-Small Magnetic Fields

There are electrical signals in the nervous system, the brain and throughout the human body and there are tiny magnetic fields associated with these signals that could be important for medical science.

1 Apr 2015

Quantum Entanglement Among Individual Photon Pairs in a Squeezed Light Beam

In a recent study published in Physical Review Letters and highlighted by the magazine Science News, the research group led by ICREA Prof at ICFO Morgan Mitchell has detected, for the first time, entanglement among individual photon pairs in a beam of squeezed light.

30 Mar 2015

Astronomers Identify Best Type Ia Supernovae for Measuring Cosmic Distances

The brilliant explosions of dead stars have been used for years to illuminate the far-flung reaches of our cosmos. The explosions, called Type Ia supernovae, allow astronomers to measure the distances to galaxies and measure the ever-increasing rate at which our universe is stretching apart.

27 Mar 2015

Single Photon Successfully Entangles 3,000 Atoms

Physicists from MIT and the University of Belgrade have developed a new technique that can successfully entangle 3,000 atoms using only a single photon. The results, published today in the journal Nature, represent the largest number of particles that have ever been mutually entangled experimentally.

27 Mar 2015

Scientists Observe Converging Point of Classical and Quantum Behavior

If we are ever to fully harness the power of light for use in optical devices, it is necessary to understand photons - the fundamental unit of light. Achieving such understanding, however, is easier said than done. That's because the physical behavior of photons - similar to electrons and other sub-atomic particles - is characterized not by classical physics, but by quantum mechanics.

25 Mar 2015

USPTO Awards Whitewood Patent for Secure Multi-Party Communication Compatible with Quantum Key Distribution

Whitewood Encryption Systems, Inc., a builder of next-generation systems of data encryption that leverage advanced cryptography technologies emerging from U.S. centers of research excellence, announced today that the U.S. Patent and Trademark Office has issued U.S. Patent No. 8,929,554, with claims covering methods and systems for secure multi-party communication that are compatible with various key distribution protocols, including quantum key distribution (QKD).

24 Mar 2015

Orbital Angular Momentum for Encoding Information Increases Possibility of High-Dimensional Quantum Key Distribution

Researchers at the University of Rochester and their collaborators have developed a way to transfer 2.05 bits per photon by using "twisted light." This remarkable achievement is possible because the researchers used the orbital angular momentum of the photons to encode information, rather than the more commonly used polarization of light.

23 Mar 2015

CQP Researchers Publish Paper on Active Temporal Multiplexing of Photons in arXiv

A paper co-authored by researchers including Gabriel Mendoza, Raffaele Santagati, Jack Munns, Lizzy Hemsley, Mateusz Piekarek, Enrique Martin-Lopez, Graham Marshall, Damien Bonneau, Mark Thompson and Jeremy O'Brien from the Centre for Quantum Photonics has been published in arXiv this month.

23 Mar 2015