Quantum Computing News

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Review on Quantum Manipulation

Quantum superposition is a fundamental and also intriguing property of the quantum world. Because of superposition, a quantum system can be in two different states simultaneously, like a cat that can be both "dead" and "alive" at the same time. However, this anti-intuitive phenomenon cannot be observed directly, because whenever a classical measuring tool touches a quantum system, it immediately collapse into a classical state.

15 Apr 2014

Novel Proof-of-Concept Experiment Will Aid Development of Programmable Quantum Computers

University of Chicago researchers and their colleagues at University College London have performed a proof-of-concept experiment that will aid the future development of programmable quantum computers.

11 Apr 2014

Scientists Realize Quantum Logic Gate between a Single Photon and a Single Atom

Scientists at MPQ successfully process quantum information with a system comprising an optical photon and a trapped atom.

11 Apr 2014

Max Planck Physicists Develop Novel Quantum Gate, Essential for Quantum Computers

Quantum information processing is almost a sure thing in the not-too-distant future. Physicists from the Max Planck Institute of Quantum Optics in Garching have developed a novel quantum gate, an essential component of quantum computers.

10 Apr 2014

Waveguides Coupled with Surface Plasmons Hold Promise for Quantum Computing

For years, researchers have been interested in developing quantum computers—the theoretical next generation of technology that will outperform conventional computers. Instead of holding data in bits, the digital units used by computers today, quantum computers store information in units called "qubits." One approach for computing with qubits relies on the creation of two single photons that interfere with one another in a device called a waveguide.

7 Apr 2014

Physicists Separate Three Photons to Prove Theory of Quantum Nonlocality

In the world of quantum science, Alice and Bob have been talking to one another for years. Charlie joined the conversation a few years ago, but now with spacelike separation, scientists have measured that their communication occurs faster than the speed of light.

25 Mar 2014

D-Wave Computing Machine Uses Quantum Effects, Confirms ETH Zurich Team

D-Wave – a special computing machine with this name has been getting computer scientists and physicists talking for a number of years now. The Canadian technology company of the same name is advertising the machine as a quantum computer. However, whether or not the machine does in fact use quantum effects is the subject of controversial debate amongst experts in the field. If it does, then this would make D-Wave the world's first commercially available quantum computer.

19 Mar 2014

Researchers Control Rotational Temperature of Molecular Ions

Chemical reactions taking place in outer space can now be more easily studied on Earth. An international team of researchers from the University of Aarhus in Denmark and the Max Planck Institute for Nuclear Physics in Heidelberg, discovered an efficient and versatile way of braking the rotation of molecular ions.

14 Mar 2014

Lasers Cool Atoms to Create New Type of ‘Ultracold’ Molecule

Researchers have created a new type of "ultracold" molecule, using lasers to cool atoms nearly to absolute zero and then gluing them together, a technology that might be applied to quantum computing, precise sensors and advanced simulations.

13 Mar 2014

Quantum Cryptography May Help Secure Business Transactions

The way we secure digital transactions could soon change. An international team has demonstrated a form of quantum cryptography that can protect people doing business with others they may not know or trust – a situation encountered often on the internet and in everyday life, for example at a bank's ATM.

13 Mar 2014