Popular television shows such as "Doctor Who" have brought the idea of time travel into the vernacular of popular culture. But problem of time travel is even more complicated than one might think. LSU's Mark Wilde has shown that it would theoretically be possible for time travelers to copy quantum data from the past.
The Information Age will get a major upgrade with the arrival of quantum processors many times faster and more powerful than today's supercomputers.
Quantum technologies for communication and computation can play on the strengths of different systems: photons are good for zipping information around, atoms are good for storage. CQT researchers have demonstrated a technique for producing entangled photon pairs that promises to help interface the two.
Institute for Quantum Computing (IQC) researcher Dr. Thomas Jennewein and Dr. Vadim Makarov have received a $600,000 contract from the Canadian Space Agency (CSA) to design and build a compact prototype quantum key distribution receiver (QKDR) suitable for a low-cost microsatellite mission.
Usually, when researchers work with quantum information, they do everything they can to prevent the information from decaying. Now researchers at the Niels Bohr Institute, among others, have flipped things around and are exploiting the decay to create the so-called entanglement of atomic systems, which is the foundation for quantum information processing. The results are published in the scientific journal, Nature.
Suggesting that quantum computers might benefit from losing some data, physicists at the National Institute of Standards and Technology (NIST) have entangled—linked the quantum properties of—two ions by leaking judiciously chosen information to the environment.
Advances in technology for computation and information storage always require to make the systems smaller and faster. The limits of miniaturization are those set by nature: Materials are composed by specific units, the atoms, that cannot be further divided.
An international team of physicists led by SFU professor Mike Thewalt has overcome a key barrier to building practical quantum computers, taking a significant step to bringing them into the mainstream.
An international team of scientists has shown for the first time that atoms can work collectively rather than independently of each other to share light.
A normally fragile quantum state has been shown to survive at room temperature for a world record 39 minutes, overcoming a key barrier towards building ultrafast quantum computers.