It is experimentally demonstrated that entangled quantum states can be used to amplify perturbations and to increase changes in observable values. The physical system is seven nuclear spins of single-labeled 13C-benzene in a liquid crystalline matrix. An entangled state of six proton spins was used to monitor interaction with the 13C spin.
Journal of Chemical Physics
- Pub Date:
- September 2004
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Nuclear magnetic resonance and relaxation;
- Liquid crystals