Practical implementations of twirl operations
PHYSICAL REVIEW A 71:3 (2005) ARTN 032327
Preparing high purity initial states for nuclear magnetic resonance quantum computing
Physical Review Letters 93:4 (2004)
Abstract:
High purity initial states were prepared for nuclear magnetic resonance quantum computing. A chemical reaction involving pure parahydrogen was initiated using a 12 ns laser pulse. The product containes a hydrogen-derived two-spin system with an effective spin-state purity of 0.916. It is observed that the resulting spin state has an entanglement of formation of 0.822 and cannot be described by local hidden variable models.Implementing Grover's Quantum Search on a Para-Hydrogen based Pure State NMR Quantum Computer
(2004)
Preparing High Purity Initial States for Nuclear Magnetic Resonance Quantum Computing
Physical Review Letters 93 (2004) 040501 4pp