Atominstitut
> Zum Inhalt
2011-08-10 [ ]

The Diamond’s Quantum Memory

Two completely different quantum systems were successfully joined at Vienna University of Technology (TU Vienna). This should pave the way to feasible quantum-computer microchips.

Der Quantenchip: In der Mitte ist der gewundene Mikrowellenresonator und der dunkle Diamant zu erkennen.

Johannes Majer (unten) mit Wissenschaftlern aus seinem Team: Robert Amsüss, Tobias Nöbauer, Stefan Putz (v.l.n.r.)

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 could occupy several different states at the same time – and that way it could try out different possible solutions of a problem at once, finding the correct answer much faster than a normal computer ever could. Diamonds could now bring physicists one important step closer to the quantum computer. At Vienna University of Technology, microwaves have now been coupled to the quantum states of a diamond. The results of this research project were now published in the scientific journal “Physical Review Letters”.


Cavity QED with magnetically coupled collective spin states
R. AMSÜSS, CH. KOLLER, T. NÖBAUER, S. PUTZ, S. ROTTER, K. SANDNER, S. SCHNEIDER,  M. SCHRAMBÖCK, G. STEINHAUSER, H. RITSCH, J. SCHMIEDMAYER, J. MAJER
Phys. Rev. Lett. 107, 060502 (2011) 

Article
Press release