Tag Archives: qubit

Quantum Computation: Fragile yet Error-free

Physicists have experimentally encoded one quantum bit (qubit) in entangled states distributed over several particles and for the first time carried out simple computations on it. The 7-qubit quantum register could be used as the main building block for a quantum computer that corrects any type of error. The researchers’ results have now been published in Science. (more…)

Read More

On the Road to Fault-Tolerant Quantum Computing

Collaboration at Berkeley Lab’s Advanced Light Source Induces High Temperature Superconductivity in a Toplogical Insulator

Reliable quantum computing would make it possible to solve certain types of extremely complex technological problems millions of times faster than today’s most powerful supercomputers. Other types of problems that quantum computing could tackle would not even be feasible with today’s fastest machines. The key word is “reliable.” If the enormous potential of quantum computing is to be fully realized, scientists must learn to create “fault-tolerant” quantum computers. A small but important step toward this goal has been achieved by an international collaboration of researchers from China’s  Tsinghua University and the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) working at the Advanced Light Source (ALS). (more…)

Read More

‘On Quest for Information Science’s Holy Grail: Quantum Computing’

*Q & A: Dr. Michael Freedman discusses his past accomplishments and current pursuits to build a quantum computer.*

Santa Barbara, Calif.Mountain climbing is all about testing and pushing limits. But it’s not enough to rely on physical strength and stamina alone. To conquer a mountain, one must also possess the mental toughness and problem-solving skills needed to navigate difficult, potentially dangerous, terrain.

(more…)

Read More