News tagged with quantum information

The diamond’s quantum memory

For years, quantum computers have been the holy grail of quantum technology. When a normal computer has to solve a number of problems, it can only execute them one after the other. In contrast, a quantum computer ...

Aug 10, 2011
4.9 / 5 (34) 7

Storing quantum information permanently

Quantum memory is one of the basic building blocks needed for realizing a quantum computer one day. Atac Imamoglu, a professor of quantum electronics, and Renato Renner, a professor of theoretical physics, ...

Jul 27, 2011
4.6 / 5 (12) 0 | with audio podcast

Quantum eavesdropper steals quantum keys

(PhysOrg.com) -- In quantum cryptography, scientists use quantum mechanical effects to encrypt and then communicate confidential information. Although quantum cryptography codes are unbreakable in principle, even the best ...

Jun 20, 2011 report
4.6 / 5 (11) 10 | with audio podcast

Single atom stores quantum information

(PhysOrg.com) -- A data memory can hardly be any smaller: researchers working with Gerhard Rempe at the Max Planck Institute of Quantum Optics in Garching have stored quantum information in a single atom. ...

May 02, 2011
5 / 5 (12) 4 | with audio podcast