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Ultrahigh Transmission Optical Nanofibers Hold Potential for Quantum Computers

Take a fine strand of silica fiber, attach it at each end to a slow-turning motor, gently torture it over an unflickering flame until it just about reaches its melting point and then pull it apart. The middle will thin out like a piece of taffy until it is less than half a micron across -- about 200 times thinner than a human hair.

18 Jun 2014

New Quantum Error-Correcting Method Tested Experimentally

Even computers are error-prone. The slightest disturbances may alter saved information and falsify the results of calculations. To overcome these problems, computers use specific routines to continuously detect and correct errors.

16 Jun 2014

Contextuality Quantum Property Provides Power for Quantum Computation

A new theoretical advance explains where the power of quantum computation comes from, and will help researchers design and build better computers and algorithms.

13 Jun 2014

Individual Trapped Atomic Ions Used as Qubits in Quantum Computing Research

Research is being conducted worldwide to develop a new type of computational device known as a quantum computer, based on the principles of quantum physics. Quantum computers could tackle specialized computational problems such as integer factorization or big data analysis much faster than conventional digital computers.

12 Jun 2014

Quantum Weirdness Essential Ingredient for Building Quantum Computers

A form of quantum weirdness is a key ingredient for building quantum computers according to new research from a team at the University of Waterloo's Institute for Quantum Computing (IQC).

12 Jun 2014

Super-Cold Cloud of Atoms Magnifies Effects of Quantum Mechanics

Researchers at Washington State University have used a super-cold cloud of atoms that behaves like a single atom to see a phenomenon predicted 60 years ago and witnessed only once since.

5 Jun 2014

Electrons in Bismuth Behave Differently to Free Electrons in Simple Metals

Time and again, even simple materials take physicists by surprise. Researchers at the Max Planck Institute for Chemical Physics of Solids in Dresden have observed an electronic property in the metal bismuth which they expected only in significantly more complex materials.

4 Jun 2014

Research on Majorana Fermion Receives $3 Million Grant

University of Pittsburgh physicist Sergey Frolov has received a $3 million Office of Naval Research Basic Research Challenge grant to explore ways of transforming quantum computing through the use of an unusual particle. Frolov will be the primary investigator for the study on the Majorana fermion, a long-posited but elusive elementary particle that Frolov and colleagues discovered in 2012.

29 May 2014

Global Symmetry Not Required for Sped up Search by Quantum Particles

A quantum particle can search for an item in an unsorted "database" by jumping from one item to another in superposition, and it does so faster than a classical computer ever could.

21 May 2014

Bristol Quantum Computing Researcher Awarded EPSRC Early Career Fellowship

Dr Ashley Montanaro, a Lecturer in the Department of Computer Science, has been awarded a prestigious EPSRC Early Career Fellowship for research on the theory of quantum computing.

21 May 2014