Title :
Realisation of the Cirac-Zoller controlled-NOT quantum gate
Author :
Schmidt-Kaler, F. ; Häffner, H. ; Riebe, M. ; Gulde, S. ; Lancaster, G. P T ; Deuschle, T. ; Becher, C. ; Roos, C. ; Eschner, J. ; Blatt, R.
Author_Institution :
Institut fur Exp., Innsbruck Univ., Austria
Abstract :
Realisation of controlled-NOT gate (CNOT) operation between two individual ions as a universal two-bit quantum gate based from the proposals of Cirac and Zoller, is presented. Two single 40Ca+ ions are held in a linear Paul trap and are individually addressed with focused laser beams. Superpositions of the S12 /and the D52/ long lived electronic states represent a qubit. A sequence of well suited laser pulses flips the state of the target ion conditional to the state of the control ion.
Keywords :
calcium; laser cooling; particle traps; quantum gates; trapped ions; Ca; Cirac-Zoller controlled-NOT quantum gate; electronic states; focused laser beams; linear Paul trap; qubit; two-bit quantum gate; Circuits; Electron traps; Laser beams; Optical control; Optical pulses; Particle beam optics; Proposals; Quantum computing; Quantum well lasers; Stationary state;
Conference_Titel :
Quantum Electronics Conference, 2003. EQEC '03. European
Print_ISBN :
0-7803-7733-8
DOI :
10.1109/EQEC.2003.1314241
